Dry Eye Disease
Red Flags — eye symptoms requiring urgent action
| Red flag | Why dangerous | Action |
|---|---|---|
| Sudden visual loss; monocular | Retinal artery occlusion; acute angle-closure glaucoma; retinal detachment. Dry eye does NOT cause acute visual loss. New or sudden visual loss in any context = urgent ophthalmology. | 999 or same-day ophthalmology |
| Red painful eye + haloes around lights | Acute angle-closure glaucoma (AACG). Medical emergency: IOP >40mmHg; permanent visual loss within hours if untreated. Nausea; vomiting; coloured haloes; rock-hard eye. 999. | 999 — acute ophthalmology; IV acetazolamide; laser iridotomy |
| Severe pain; photophobia; purulent discharge; contact lens wearer | Bacterial or Acanthamoeba keratitis — vision-threatening. Contact lens wearers are at particularly high risk of Acanthamoeba keratitis (especially with tap water lens rinsing; swimming). Corneal ulceration can perforate within days. Same-day ophthalmology emergency. | Same-day ophthalmology — corneal scraping; cultures; intensive topical antibiotics |
| Corneal clouding; white opacity | Corneal ulceration (infectious keratitis; severe DED with corneal erosion; neurotrophic keratitis). Dry eye-related corneal erosion can progress to perforation in severe cases without treatment. | Same-day ophthalmology |
| Dry eyes + dry mouth + systemic features (joint pains; fatigue; parotid swelling) | Sjögren’s syndrome. Significantly increased lymphoma risk (40–60× general population). Systemic involvement (renal; pulmonary; neurological; cardiovascular). Requires rheumatology review and long-term monitoring. | Urgent bloods (anti-Ro; anti-La; ANA); rheumatology referral |
Safeguarding — Dry Eye and Vulnerability
💼 Occupational safeguarding
- Screen intolerance threatening employment — document impact on ability to work
- Workplace adjustments: display screen equipment (DSE) assessment; anti-glare screen; lighting adjustment; humidifier — employer legal obligation under Health and Safety (Display Screen Equipment) Regulations 1992
- Ophthalmology referral to support reasonable adjustment documentation if needed
- Contact lens intolerance: optometrist review; spectacle alternative; Equality Act implications if related to disability
🚘 Driving safety
- Severe DED with blurred vision or photophobia: driving safety must be discussed
- DVLA: drivers must notify if vision does not meet the required standard — most DED patients will not reach DVLA threshold
- Practical advice: instil lubricant drops before driving; avoid driving in low-humidity conditions without treatment; use moisture chamber glasses
🥑 Sjögren’s and systemic risk
- If Sjögren’s diagnosed: lymphoma risk (40–60×); document and institute monitoring
- Annual FBC and LDH for lymphoma surveillance in Sjögren’s
- Systemic organ involvement: renal; pulmonary; neurological — co-ordinate specialist monitoring with rheumatology
💋 Medication safety
- Contact lens wearers receiving preserved eye drops: BAK toxicity risk — must prescribe preservative-free
- Document medication contribution to DED (antihistamine; antidepressant; OCP) to allow future clinical decisions to consider DED as a known side effect
- BAK-containing anti-glaucoma drops: patient safety issue — switch to PF formulation where available; document if switch not possible and why
💼 Occupational Impact
8–10 hours/day on screens. DED is now a functional occupational disability. DSE workplace assessment (employer obligation). Anti-glare screen; lighting adjustment; humidifier; screen position below eye level. OSDI documentation supports reasonable adjustment requests.
"As an accountant you are essentially required to be at a screen all day. That means we need to make your workplace as DED-friendly as possible — I am going to go through the specific changes that will make a real difference."👤 Contact Lens Frustration
Daily lenses increasingly uncomfortable. This directly affects daily life and professional appearance. Management: preservative-free drops in or around lens use; spectacle alternatives on symptomatic days; optometrist review (different lens material; daily disposable vs extended; silicone hydrogel). Reassure: managing DED effectively usually allows lenses to be tolerated again.
"Getting the dry eye under control should help significantly with your lens comfort. In the meantime, let’s make sure the drops you are using are safe to use with lenses in."💕 Menopausal Context
Post-menopausal — DED is significantly more common post-menopause (oestrogen and androgen deficiency affecting meibomian glands and lacrimal secretion). If other menopausal symptoms are present: HRT discussion is appropriate — transdermal oestrogen may benefit DED alongside menopausal symptoms. This is also an opportunity for holistic menopausal health review.
"I should mention that the menopause does contribute to dry eye — it is very common in women your age. Are you experiencing any other menopausal symptoms? Because there may be a treatment that could help both."📈 Prognosis and Realistic Hope
DED is a chronic condition — management not cure for most patients. However: Mrs. Chen has multiple identifiable and modifiable triggers. With optimal management (PF drops + lid hygiene + antihistamine review + screen habits + humidifier), most patients with evaporative DED of this type get significant improvement within 4–8 weeks. Realistic optimism: “This is very manageable — and we have a clear action plan.”
"Dry eye is chronic but very manageable. With the right drops; the lid hygiene routine; and the screen changes — you should see real improvement within 4–8 weeks."- Not explaining paradoxical epiphora — Mrs. Chen is confused about “dry but watery” eyes; not addressing this leaves her without a coherent explanation and reduces adherence to DED treatment
- Not identifying antihistamine as a contributing factor — a modifiable trigger not identified = incomplete management
999 / Same-Day Ophthalmology
Immediate- Acute angle-closure glaucomaRed eye; haloes; severe pain; nausea — 999; IV acetazolamide; laser iridotomy
- Sudden visual lossRetinal artery occlusion; retinal detachment — 999 / same-day ophthalmology
- Keratitis (contact lens wearer; severe pain; purulent)Same-day ophthalmology; corneal scraping; intensive topical antibiotics
Urgent Ophthalmology or Rheumatology
Days–2 weeks- Sjögren’s features (dry mouth + systemic)Anti-Ro; anti-La; ANA; urgent rheumatology
- Vision-impacting DED not responding to primary care treatmentOphthalmology; OSDI >33; corneal staining; Ikervis consideration
Stepwise Primary Care Treatment
NICE CKS stepwise- Evaporative DED; OSDI moderate; contact lens wearerPF sodium hyaluronate drops; warm compress + lid hygiene; 20-20-20; antihistamine review; omega-3; 6–8 week review
- Mild DED without systemic featuresPatient education; preserved lubricant drops PRN; lid hygiene; screen habits
- Not asking about acute angle-closure glaucoma features (haloes; severe pain) — a missed AACG in a 54-year-old post-menopausal woman with eye symptoms = serious patient safety error
- Not examining lid margins — MGD is the most common type of DED (∼85%); lid margin examination identifies it and confirms the first-line treatment is lid hygiene + warm compress; not just drops
- Not asking about dry mouth — Sjögren’s sicca screen is a mandatory component of the DED history; missing it means a systemic condition with significant lymphoma risk could be missed
"You have dry eye disease — which I know sounds like a strange diagnosis when your eyes are also streaming. Let me explain why both happen at the same time. Your eyes have several layers of tears — a watery layer; an oily outer layer from glands along your eyelids; and a sticky inner layer. In your case the oily layer — from glands called meibomian glands — is not working as well as it should. That means your tears evaporate too quickly and the surface of your eye gets irritated. When the surface gets irritated, your eye has an emergency reflex: it floods the eye with a sudden burst of watery tears. But these reflex tears are low quality — they lack the oily layer — so they wash away almost immediately and the surface gets dry again. That is why you get the gritty feeling AND the streaming — they are two sides of the same problem. The good news is that we have a very clear idea of what is driving this for you: the prolonged screen use reducing your blink rate; your contact lenses; your hay fever tablet; and the air conditioning at work. And all of those are things we can address."
"Could this damage my eyes permanently? Will my vision be affected?"
"Dry eye is uncomfortable but rarely causes permanent vision damage when it is treated appropriately. Your vision is not under threat. What we want to avoid is leaving it untreated — because ongoing ocular surface inflammation, if untreated, can over time affect the corneal surface. But with the treatment plan I am going to describe, that risk is very low."
"Why have I got it now and not before?"
"Three things have probably converged: the menopause changes the oil glands in your eyelids — they are affected by hormone levels; your screen use has likely increased; and the antihistamine you take for hay fever has a mild drying effect on the eye surface. It is the combination that has tipped you over the threshold."
Allergic conjunctivitis
Itching dominant; papillae; seasonal; discharge; responds to antihistamine drops. Mrs. Chen: gritty + burning dominant (not itch); no discharge — DED more likely; may coexist.
Blepharitis without DED
Anterior blepharitis (lid margin crusting; collarettes; Staphylococcal or seborrhoeic) — often with DED. Treat blepharitis with lid hygiene; may need topical antibiotic if bacterial. Posterior blepharitis = MGD.
Sjögren’s syndrome
Dry eyes + dry mouth + systemic features. Screened today: no features in Mrs. Chen. Anti-Ro; anti-La; ANA if features emerge.
Acute angle-closure glaucoma
Red painful eye + haloes + nausea. Emergency. Excluded today — no acute pain; no haloes.
- Not explaining paradoxical epiphora — Mrs. Chen’s chief confusion is “dry but watery”; without this explanation she cannot make sense of the diagnosis and will struggle to trust the treatment plan
- Referring to ophthalmology before attempting first-line treatment — premature referral for a condition that has multiple effective GP-manageable interventions still to try
Validate — the OTC drops were not wrong; just insufficient
She has been using OTC lubricants from the chemist. These are not wrong — they are just not strong enough or frequent enough for moderate DED with contact lens use and high screen exposure.
"The drops you have been using are a reasonable start — but they are probably preserved, which is not ideal when you are using them frequently and wearing contact lenses. And dry eye is one of those conditions where the type of drop and the frequency both really matter."Explain — why preservative-free matters; why drops alone are not enough
The preservative in her current drops (likely BAK) is being absorbed by her lenses and worsening the problem. And drops alone do not address the lid margin disease — the warm compress and lid hygiene are as important as the drops for evaporative DED.
"I am going to prescribe you a different type of drop — preservative-free, which is safe to use with your lenses. But I also want to add a lid hygiene routine — warm compresses and lid wipes — because the oil glands in your eyelids are part of the problem and drops alone won’t fix those."Negotiate — a stepwise plan with realistic expectations
The plan is specific: PF drops ×4/day + warm compress BD + Blephasol + 20-20-20 rule + antihistamine review + humidifier. Realistic: 4–8 weeks to see meaningful improvement.
"This is going to be a combination approach — the drops; the lid routine; and some changes to your screen setup. Give it 6–8 weeks before we judge whether it is working. Most people with the same type of dry eye as you get significant improvement with this combination."8–10 hours/day screen use. Blink rate falls from 15/min to 3–8/min with screen use — each blink renews the tear film. The 20-20-20 rule interrupts the screen-induced blink suppression cycle. Additionally: consciously blink fully and frequently during screen use; increase text size (reduces intense focus and blink inhibition); position screen below eye level (reduces exposed ocular surface area and evaporation rate).
Set phone reminders or use screen time apps (Time Out; Eye Care 20 20 20) to prompt 20-second breaks every 20 minutes. Blue light filters and anti-glare screen protectors: some evidence for comfort benefit. DSE assessment (employer obligation under Display Screen Equipment Regulations 1992): reduces glare; improves posture; optimises screen position.
Warm compresses soften solidified meibum (meibomian secretion) — normal meibum melts at 28–32°C; abnormal MGD meibum melts at higher temperatures. Heating the lid to 40°C for 5–10 minutes restores the oily layer. Lid massage (gentle pressure along the lid margin after warming) expresses the softened meibum. EyeGiene Instant Warming Eye Mask; Bruder Moist Heat Eye Compress; warm damp flannel — all effective.
Heat flannel/compress to comfortable warmth (approximately 40°C). Apply to closed eyelids for 5–10 minutes BD. After warming: gently massage along the lid margin with a fingertip (upper lid: downward strokes; lower lid: upward strokes). Then clean lids with Blephasol or Ocusoft lid wipes. This sequence (heat; massage; clean) takes approximately 10–15 minutes BD. Build as a habit alongside morning and evening routine.
Air conditioning reduces ambient humidity significantly (40–60% RH in offices vs 30–50% with AC — AC can reduce to 20–30%). Low humidity directly accelerates tear evaporation. Desk humidifier (1–2L capacity; USB-powered; ultrasonic): maintains local humidity at workstation. Redirect AC vents away from face and workstation. Outdoor: wind accelerates evaporation; wraparound glasses reduce airflow across the ocular surface.
Small ultrasonic USB humidifier at workstation (available online; approximately £15–30). Adjust AC vents. Avoid fans directed at face. Wraparound glasses/sunglasses outdoors. Do not smoke; avoid smoky environments (direct toxin to tear film and meibomian glands). Sleep: ensure bedroom is not too dry; consider overnight eye ointment if waking with dry eyes (VitA-POS or Lacri-Lube ointment — blurs vision; apply just before sleep).
Antihistamines have anticholinergic effects — they reduce lacrimal secretion and goblet cell mucin production. All antihistamines worsen DED to some degree; first-generation (chlorphenamine) more than second-generation (cetirizine; loratadine). Intranasal corticosteroids (fluticasone nasal spray; mometasone nasal spray) are first-line for allergic rhinitis and have NO anticholinergic effect on the eyes — they are the preferred option for patients with DED and allergic rhinitis.
Options: (1) Switch cetirizine to fluticasone nasal spray (Flixonase; Avamys) 2 sprays each nostril OD — first-line for allergic rhinitis; no anticholinergic ocular effect. (2) Topical antihistamine eye drops (olopatadine; azelastine) instead of systemic for ocular symptoms. (3) If oral antihistamine preferred: loratadine (marginally less anticholinergic than cetirizine; small difference). Allergen immunotherapy: if hay fever is severe; specialist referral.
Omega-3 fatty acids (EPA; DHA) have anti-inflammatory effects on the ocular surface and meibomian glands — reduce production of inflammatory prostaglandins that contribute to MGD and evaporative DED. Evidence: multiple RCTs showing modest but consistent benefit on OSDI score and TBUT; DREAM trial (NEJM 2018) showed no benefit vs control (olive oil — which also has anti-inflammatory properties); effect size modest. NICE CKS recommends consideration in DED alongside other measures. Risk: very low; well-tolerated.
Fish oil capsules (EPA + DHA; total 1–2g/day); or flaxseed oil (ALA; converted to EPA/DHA with less efficiency). Take with food (improves absorption; reduces GI side effects). Not on blood thinners (modest antiplatelet effect — relevant if on warfarin or DOAC — discuss with prescriber). Dietary: oily fish (salmon; mackerel; sardines; tuna) 2×/week.
1. ALL eye drops used by contact lens wearers must be preservative-free (BAK absorbed by lenses). 2. PF drops can be instilled while wearing lenses — safe in lenses. 3. Preserved drops: apply 15–30 minutes before lens insertion or after lens removal — give time for preservative to drain. 4. Consider spectacle alternatives on symptomatic days — reduces evaporation vs contact lens surface. 5. Optometrist review: daily disposable silicone hydrogel lenses have better oxygen transmissibility; consider if worsening. 6. Lens wear time: reduce if symptomatic; take lenses out earlier in the evening.
PF sodium hyaluronate drops: safe to use with lenses in. Reduce daily lens wear hours if symptomatic. Use spectacles for screen work on bad DED days. Optometrist review: assess whether daily disposable is the most appropriate lens type; discuss lubricating contact lens solutions. Never wear contact lenses if eye is red; painful; or discharging — seek same-day assessment.
- Preserved (BAK): carmellose 0.5%; hypromellose 0.3%; Viscotears unit doses — use if <4×/day; cheaper; NOT for contact lens wearers
- Preservative-free: sodium hyaluronate (Hylo-Forte; Hylo-Comod; Clinitas; Artelac) — ×4/day; contact lens wearers; >4×/day use; sensitive eyes; post-surgical
- Carbomer gel (Viscotears; Gel-Tears; Clinitas Gel) — longer-lasting; better for night use; blurs vision temporarily; once or twice daily
- Ointment (VitA-POS; Lacri-Lube; Hylo-Night) — overnight; thickest; best for exposure keratopathy or post-LASIK
- Warm compress: 5–10 min at 40°C; EyeGiene Instant Warming Eye Mask; Bruder; warm damp flannel
- Lid massage: after warming; gentle pressure along lid margin; upper and lower lids; expresses meibum
- Lid wipes: Blephasol (recommended); Ocusoft; Lid-Care; Blephaclean; dilute baby shampoo; once or twice daily
- Sequence: warm → massage → clean; BD minimum
- Switch cetirizine to: fluticasone nasal spray (Flixonase) — first-line for allergic rhinitis; no anticholinergic ocular effect
- Or topical antihistamine eye drops (olopatadine 0.1%; azelastine 0.05%) for ocular symptoms specifically
- Omega-3: fish oil 1–2g/day (EPA+DHA); with food; modest anti-inflammatory benefit
- Humidifier at workstation; 20-20-20 rule; wraparound glasses outdoors
- NICE TA369: licensed for severe keratitis in adult DED; failed adequate PF lubricant drops
- One drop per affected eye once daily at bedtime
- Side effects: stinging/burning on instillation (40%); photophobia; initial worsening
- NOT for GP initiation — ophthalmology must confirm keratitis on slit lamp first
- Once initiated: GP can continue prescription in shared care
- Preserved drops in a contact lens wearer — BAK toxicity; accumulates in lens material
- Ikervis without ophthalmology assessment — specialist initiation only
- Advise stopping contact lenses permanently before specialist review — premature; most patients can continue with right management
- Ignoring the antihistamine as a contributing cause — modifiable pharmacological trigger
Select DED type and severity — treatment guidance
"These drops are preservative-free — which means they are safe to use with your contact lenses in. Use them at least 4 times a day — ideally when you first wake up; mid-morning; mid-afternoon; and before bed. You can use them more often if you need to. These are different from the drops you have been buying over the counter — the preservative in those drops gets absorbed by your contact lenses and makes the dryness worse."
PF sodium hyaluronate: essential for contact lens wearers (>4×/day use); safe in lenses; no BAK toxicity. SCA: prescribing preserved drops for a contact lens wearer = Tasks error. Hylo-Forte 0.2% is stronger than Hylo-Comod 0.1% — for moderate DED prefer 0.2% concentration. Document: “PF drops prescribed; safe for use with contact lenses; 4×/day minimum.”
"These drops are for mild symptoms — use them when your eyes feel uncomfortable. Up to 3–4 times a day is fine. If you find yourself reaching for them more often than that; come back and I can give you a different type that is safe to use more frequently."
Preserved drops: mild DED; <4×/day; NEVER contact lens wearers; NEVER >4×/day. SCA: the commonest prescribing error is preserved drops for a contact lens wearer. Mrs. Chen requires PF drops — not preserved.
"This gel is thicker than the drops — it stays on your eye surface for longer, which is why it is good at night. When you first put it in, it will blur your vision briefly — which is why I suggest using it just before you go to sleep. Your vision is fine in the morning."
Carbomer gel: night-time DED; longer contact time; blurs vision (apply at bedtime; not before driving). NOT paraffin ointment in contact lenses. SCA: counselling point about temporary blurring is a safety communication — document “patient advised not to drive after gel instillation.”
"The oil glands along your eyelids are blocked — like a blocked pore in your skin. The warm compress softens the oil; then you massage it out; then you clean the lid edge. It takes about 10 minutes morning and evening. I know that sounds like a lot — but for most people with the type of dry eye you have, this routine makes as much difference as the drops, if not more. After a few weeks it becomes quick and automatic."
Lid hygiene: as important as drops for evaporative DED; targets root cause (MGD). Warm compress (5–10 min) → lid massage → Blephasol lid wipes; BD. SCA: not mentioning lid hygiene in evaporative DED = incomplete management; Tasks deduction. Products are OTC — cannot be prescribed on FP10; patient buys them. Demonstrate technique or refer for optometrist demonstration.
"I would also suggest omega-3 fish oil — you can buy this over the counter at any pharmacy or supermarket. It has mild anti-inflammatory properties that can help the oil glands in your eyelids. It is not a dramatic treatment; but it is safe; cheap; and adds to the benefit of everything else we are doing. 1–2 capsules a day with food."
Omega-3: adjunctive; modest evidence; safe; OTC (not prescribable on FP10). Mention as part of the complete management plan for MGD/evaporative DED. Do not overstate the evidence — “modest benefit; safe; worth trying alongside the other measures.” SCA: suggesting omega-3 as part of a holistic plan demonstrates knowledge of NICE CKS management approach.
"This drop works on the inflammation underneath the dryness. When you first start it, it may sting or burn for a minute or so after putting it in — that is completely normal and usually settles after a couple of weeks. Put it in just before you go to sleep, so any stinging happens while you are going off to sleep. Keep using your other drops during the day alongside this one."
Ikervis: NICE TA369; severe keratitis + DED; failed PF drops; ophthalmology initiation only; GP can continue shared care. Stinging/burning common — counsel to persevere. 1 drop OD at bedtime; continue PF drops alongside. SCA: knowing that Ikervis exists; its indication; and that it requires specialist initiation demonstrates clinical depth about DED management beyond step 1–2 treatment.
Occupational Function
8–10 hours/day screen use. DED is an occupational disability. DSE workplace assessment (employer legal obligation). Documented OSDI score supports reasonable adjustment requests. Screen position; anti-glare protectors; humidifier; breaks.
"As an accountant you need to be at a screen for most of the day. I want to help you make that possible without your eyes suffering."Contact Lens Independence
Daily lens intolerance is frustrating and affects personal choice. The goal of management is to restore contact lens comfort — PF drops + lid hygiene + reduced BAK exposure will in most cases allow lenses to be tolerated again. Reassure: stopping lenses is not inevitably necessary.
"Getting the dry eye under control should allow you to wear your lenses comfortably again — that is one of our treatment goals."Driving Comfort
DED with photophobia or blurred vision in bright light (common) affects driving comfort; especially oncoming headlights at night. PF drops before driving improves comfort. Advise: apply drops before driving in low humidity; use wraparound glasses; avoid overnight ointment before driving.
"If you find driving uncomfortable — especially at night or in bright conditions — try applying the drops just before you drive."Menopausal Context
Post-menopausal oestrogen and androgen deficiency worsens MGD. If other menopausal symptoms are present: transdermal HRT may benefit both. This is an opportunity for holistic menopausal health review alongside the DED management.
"Are there any other menopausal symptoms you are experiencing? The menopause does contribute to dry eye — there may be a treatment that addresses both."Prognosis
DED is chronic. Management; not cure. However: Mrs. Chen has multiple identifiable and modifiable triggers — most patients with evaporative DED driven by modifiable factors see significant improvement with the combined approach. Realistic timeframe: 4–8 weeks for meaningful OSDI improvement.
"Dry eye is ongoing — but for most people with your type, the combination approach makes a real and lasting difference. Most of my patients see significant improvement within 4–8 weeks."Anxiety about Vision
Many patients with DED fear permanent vision loss. The reassurance is specific: DED rarely causes permanent vision damage when treated; blurred vision in DED is from tear film instability; not retinal or nerve disease; treating DED restores visual clarity. If corneal staining present: address more urgently; ophthalmology; but still reassure about prognosis.
"I want to reassure you — dry eye is uncomfortable but it is very rarely threatening to your vision in the long term, especially when we manage it properly."Today — PF drops; lid hygiene advice; antihistamine switch; OSDI baseline
Hylo-Forte 0.2% (or Clinitas; Artelac) PF sodium hyaluronate ×4/day; safe in lenses. Warm compress BD + Blephasol lid wipes (OTC — patient purchases). Switch cetirizine to fluticasone nasal spray OD (Flixonase). Omega-3 fish oil supplement advice (OTC). 20-20-20 screen rule. Humidifier advice. OSDI baseline score documented. Contact lens timing advice (PF drops: safe in lenses; preserved: 15–30 min gap). 6–8 week review booked.
6–8 Weeks — OSDI re-score; lid hygiene compliance; contact lens comfort
OSDI re-score: clinically meaningful response = ≥7-point reduction. Lid hygiene: is the warm compress + Blephasol routine established? Frequency: ×4/day drops? Antihistamine: switched to fluticasone? Hay fever controlled? Contact lens comfort improved? If improving: continue; plan long-term management. If not improving: intensify (drops more frequently; carbomer gel at night); optometrist review; consider ophthalmology if OSDI still >33.
3 Months — Omega-3 assessment; medication review
Omega-3: OSDI improving? (3 months for full omega-3 effect). Review all medications for ongoing DED contribution. Sjögren’s: have any new systemic features emerged (dry mouth; joint pains)? If OSDI not improving at 3 months despite full step 1–2 compliance: ophthalmology referral. HRT discussion if other menopausal symptoms have emerged.
Ophthalmology (if referred) — Slit lamp; TBUT; meibography; Ikervis assessment
Ophthalmology will: slit lamp + fluorescein staining (keratitis grade); TBUT; Schirmer’s; meibography. Consider: Ikervis if keratitis grade ≥3/4; punctal plugs if aqueous-deficient; LipiFlow or IPL if severe MGD. GP shared care: continue Ikervis prescription; monthly phone check in first 3 months; annual ophthalmology review.
Annually — OSDI; lid hygiene adherence; medication review; Sjögren’s check
Annual OSDI. Lid hygiene ongoing? Drug history update (new anticholinergic; new BAK drops). Sjögren’s: any new systemic features? Menopause: HRT review. Contact lens tolerance: optometrist review. Ophthalmology annual review if on Ikervis or has keratitis history.
DAMP monitoring mnemonic for dry eye disease
Drops: PF; frequency; contact lens timing; technique. Antihistamine: switched to fluticasone? Other anticholinergic drugs started? BAK-preserved glaucoma drops? Meibomian lid hygiene: warm compress BD; Blephasol; compliance; technique. Progress: OSDI re-score at 6–8 weeks; ≥7-point reduction = response; Sjögren’s new features?
⚠ Three critical safety-nets for Mrs. Chen
Documentation requirements
- Prescribing preserved drops for a contact lens wearer — BAK toxicity; worsens DED
- Not explaining paradoxical epiphora — Mrs. Chen remains confused about her diagnosis
- Not identifying antihistamine as a contributing factor — modifiable trigger not addressed
- Not mentioning lid hygiene — drops alone do not address the root cause of evaporative DED
- Not safety-netting contact lens keratitis — contact lens wearers have specific emergency signs
- PF drops prescribed correctly (contact lens wearer; >4×/day)
- Paradoxical epiphora explained
- Antihistamine identified and switched
- Lid hygiene regimen: warm compress + Blephasol BD
- Contact lens safety-net; AACG emergency features
- OSDI baseline; 6–8 week review; Sjögren’s screened
- Occupational frustration (screen; accountant) acknowledged
- Contact lens frustration acknowledged; reassurance given
- Paradoxical epiphora clearly explained
- Menopausal context raised sensitively
Who you are
Patricia Chen, 54, accountant; post-menopausal (last period 2 years ago; no HRT). 8–10 hours/day on screens for work. Daily disposable contact lens wearer — increasingly uncomfortable with lenses in. Cetirizine 10mg OD for seasonal hay fever (spring and summer mainly; currently spring). Air-conditioned office. OSDI at this consultation: 28 (moderate DED). No dry mouth; no joint pains; no fatigue; no systemic features.
Hidden agenda — disclose if asked
Fear of vision damage (disclose if asked about concerns): “I’m worried that if I leave this untreated it might damage my eyes permanently. The optician wasn’t very clear about whether it could cause lasting harm.” Respond well to: “Dry eye is very unlikely to threaten your vision when treated properly — you are not at risk of permanent damage from this.”
Contact lens question (raise if GP mentions drops): “Can I use the drops with my lenses in? Or do I have to take them out every time?” This distinguishes preserved from preservative-free prescribing.
Responses to key conversations
- On paradoxical epiphora explanation: “Oh — so the streaming is because the eye is dry? I had no idea. I thought the two things were unrelated.”
- On antihistamine switch: “I hadn’t thought of that. Does the nasal spray work as well as the tablet? I find the tablet easier.” — Respond well if GP explains equivalence and no ocular side effect.
- On lid hygiene: Initially: “That sounds like quite a lot of effort — twice a day?” Respond well if GP explains it becomes quick and why it is important: “OK — if it’s really going to make a difference to the oil glands I can see why just drops aren’t enough.”
- Challenge: “I’ve been using the drops from the optician for 3 months and they really haven’t helped. Why are these drops going to be any different?”
Clinical details
- Bilateral; gritty; burning; stinging; paradoxical epiphora; worse in wind and air conditioning; worse end of working day
- No acute pain; no haloes; no sudden VA change; no discharge (allergic conjunctivitis or keratitis features absent)
- Lid margin examination: mild erythema bilateral; some capping of meibomian gland orifices; turbid meibum on expression — confirms evaporative MGD type
- VA: normal; mildly fluctuating but improves with blinking — consistent with tear film instability
Resolution: “Two important differences. First: the drops you have been using are almost certainly preserved — the preservative in them is absorbed by your contact lenses and makes the dryness worse. The drops I am prescribing have no preservative — that’s a genuine difference. Second: I am also adding a warm compress and lid cleaning routine — because your oil glands are blocked, and drops alone can’t unblock them. That routine addresses the cause; the drops address the symptoms.” Mrs. Chen leaves: “I actually feel like I understand what’s causing it now, and the plan makes sense. Thank you for taking the time to explain it.”
- AACG: red eye; haloes; severe pain → 999; IV acetazolamide
- Keratitis (contact lens wearer): severe pain; purulent → same-day ophthalmology
- Sjögren’s features: anti-Ro; anti-La; rheumatology
- OSDI >33; failing step 1–2 at 6–8 weeks
- Keratitis on slit lamp → Ikervis consideration
- Post-LASIK; TED; aqueous-deficient
- Mild (OSDI 13–22): preserved drops PRN; lifestyle; lid hygiene
- Moderate (OSDI 23–32; Mrs. Chen): PF sodium hyaluronate ×4/day; warm compress + Blephasol BD; antihistamine switch; omega-3
| DAMP | Parameter | Timing | Action |
|---|---|---|---|
| Drops | PF? Frequency (≥4×/day)? Correct technique? Contact lens timing? | Every 6–8 weeks | Preserved in lens wearer: switch to PF immediately. <4×/day: re-educate. OSDI not improving: intensify; add gel; ophthalmology. |
| Antihistamine | Switched to fluticasone? Any new anticholinergic or BAK drug started? | Every review | Not switched: re-discuss. New BAK glaucoma drops: switch to PF formulation. |
| Meibomian lid hygiene | Warm compress BD? Blephasol? Technique (warm → massage → clean)? | Every 6–8 weeks | Not compliant: simplify; demonstrate technique; build to BD. Failing despite compliance: ophthalmology; meibography; LipiFlow consideration. |
| Progress (OSDI) | OSDI re-score; ≥7-point reduction target; Sjögren’s new features? | 6–8 weeks; then every 3–6 months | OSDI not reducing: ophthalmology if >33 at 8 weeks. New dry mouth or systemic features: Sjögren’s screen. |