Dry Eye Syndrome
Symptoms, causes, treatment, and when to see an optician
Overview
Dry eye syndrome is one of the most common eye conditions in the UK, affecting millions of people. It occurs when your eyes do not produce enough tears, or when the tears evaporate too quickly due to a poor-quality tear film. Despite its name, dry eye can cause watering as well as dryness, along with irritation, grittiness, and tired eyes. It is particularly prevalent among screen users, contact lens wearers, and post-menopausal women.
Symptoms
- Gritty, sandy, or scratchy sensation in the eyes
- Burning or stinging
- Red, irritated eyes
- Excessive watering (a reflex response to surface dryness)
- Blurred vision that clears temporarily when you blink
- Tired or heavy-feeling eyes, especially later in the day
- Sensitivity to wind, air conditioning, or central heating
- Discomfort with contact lens wear
Causes & Risk Factors
- Meibomian gland dysfunction (MGD) — the most common cause, where the oil-producing glands in the eyelids become blocked
- Prolonged screen use — reduced blink rate leads to faster tear evaporation
- Ageing and hormonal changes, particularly in post-menopausal women
- Central heating, air conditioning, and dry or windy environments
- Contact lens wear, especially if lenses are worn for long hours
- Medications including antihistamines, antidepressants, beta-blockers, and the oral contraceptive pill
- Autoimmune conditions such as Sjogren's syndrome, rheumatoid arthritis, and lupus
- Previous laser eye surgery (LASIK/LASEK)
- Blepharitis (eyelid inflammation)
Treatment Options
For most people with mild to moderate dry eye, management begins with over-the-counter lubricating eye drops (artificial tears). Preservative-free drops are recommended for frequent use, as preservatives can irritate the eye surface over time. Your pharmacist or optometrist can recommend the most suitable formulation for your type of dry eye — watery drops for mild symptoms, thicker gel drops for moderate dryness, and ointments for overnight use.
If your dry eye is caused by meibomian gland dysfunction — which accounts for the majority of cases — targeted lid care is essential. This involves daily warm compresses applied to the closed eyelids for 10 minutes, followed by gentle lid massage to express blocked glands, and lid hygiene wipes or solutions to keep the lid margins clean. Many optician practices now offer in-practice treatments such as meibomian gland expression, intense pulsed light (IPL) therapy, and thermal pulsation (LipiFlow) for stubborn MGD.
For more severe or resistant dry eye, your optometrist or ophthalmologist may prescribe anti-inflammatory drops (such as ciclosporin, available on the NHS under the brand name Ikervis), short courses of steroid drops, or recommend punctal plugs — tiny devices inserted into the tear drainage channels to help tears stay on the eye surface longer. Omega-3 fatty acid supplements (from oily fish or flaxseed) may also provide additional benefit. A specialist dry eye assessment is advisable if your symptoms are significantly affecting your quality of life or not improving with first-line treatments.
Prevention Tips
- Follow the 20-20-20 rule when using screens: every 20 minutes, look at something 20 feet away for 20 seconds
- Make a conscious effort to blink fully and regularly, especially during screen use
- Use a humidifier in centrally heated or air-conditioned rooms
- Position your screen below eye level so your eyes are slightly closed, reducing tear evaporation
- Maintain good eyelid hygiene with daily warm compresses if prone to MGD or blepharitis
- Stay well hydrated throughout the day
- Wear wraparound sunglasses or glasses in windy conditions
- Take regular breaks from contact lenses and ensure they are properly fitted
When to See an Optician
Book an eye test if you have persistent dry, gritty, or watery eyes that do not improve with over-the-counter drops — your optometrist can investigate the underlying cause and recommend a targeted treatment plan.
Key Facts
- Category
- Common condition
- Typically Affects
- All ages (more common over 50 and in post-menopausal women)
- Key Symptoms
- 8 identified symptoms
Concerned about dry eye syndrome?
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Detecting Dry Eye Syndrome
The following eye tests can help detect signs of dry eye syndrome:
- Standard eye test
- OCT retinal scan
- Visual field test
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