Complete Dry Eye Guide: Causes, Symptoms and Treatments
Dry eye disease affects millions of people in the UK. This dry eye guide explains what causes the condition, how to recognise the symptoms and which treatments can help restore comfort and clearer vision.
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What Is Dry Eye Disease?
Dry eye disease develops when your eyes do not produce enough tears, or when the tears you do produce are not good enough quality to keep your eyes comfortable. It is one of the most common eye conditions seen by specialists today.
Your tears are made up of three layers. There is an oily layer, a watery layer and a mucous layer. Each layer plays a part in keeping your eyes lubricated, smooth and protected from irritation. When one of these layers is reduced or out of balance, the entire tear film becomes unstable. This is when dry eye symptoms begin to appear.
For some people, dry eye is a mild and occasional irritation. For others, it becomes a persistent problem that affects daily life. It can make reading, screen use, driving and even socialising more difficult. The good news is that with the right diagnosis, dry eye can usually be managed effectively.
What Causes Dry Eye?
There is rarely just one cause of dry eye. Often, several factors combine to disrupt the tear film. Common causes include the following.
1
Meibomian gland dysfunction (MGD)
The meibomian glands sit along your eyelids and produce the oily layer of your tears. When these glands become blocked or underactive, tears evaporate too quickly. This is one of the leading causes of dry eye.
2
Reduced tear production
As we age, tear production naturally slows down. This is why dry eye becomes more common after the age of 50.
3
Hormonal changes
Many women notice dry eye symptoms during pregnancy, menopause or while taking certain hormonal medications.
4
Environmental factors
Air conditioning, central heating, wind and dry climates can all speed up tear evaporation.
5
Prolonged screen use
Many women notice dry eye symptoms during pregnancy, menopause or while taking certain hormonal medications.
6
Other medical conditions and medications
Certain autoimmune conditions, antihistamines, and previous eye surgery can all contribute to dry eye symptoms.
Common Symptoms of Dry Eye
- A burning or stinging sensation
- Redness around the eyes
- A gritty or sandy feeling, as if something is in your eye
- Watery eyes, which may seem surprising but is often the eye overcompensating for dryness
- Blurred or fluctuating vision, especially when reading or using a screen
- Sensitivity to light
- Eye fatigue, particularly toward the end of the day
How Is Dry Eye Diagnosed?
A dry eye diagnosis starts with a detailed consultation. A specialist will examine the surface of your eyes, assess your tear film and ask about your symptoms, lifestyle and any medications you take.
This assessment helps identify whether your dry eye is linked to gland dysfunction, reduced tear production, inflammation or a combination of factors. Because dry eye has so many possible causes, this step is essential. It allows your consultant to recommend a treatment plan that targets the actual source of your discomfort, rather than just masking the symptoms.
Dry Eye Treatment Options
Once the cause of your dry eye has been identified, there are several treatment options available. At Centre for Sight, treatment plans are personalised and consultant led, with the aim of restoring a healthy, stable tear film for long term comfort.
1
Intense Pulsed Light (IPL) Therapy
IPL therapy is one of the most effective treatments for dry eye linked to meibomian gland dysfunction. During treatment, gentle pulses of light are applied to the skin around the eyelids. This helps reduce inflammation and improves the function of the oil producing glands that keep your tear film stable.
Many patients find that IPL helps reduce redness, irritation and the fluctuating vision often associated with dry eye. It is non invasive and usually requires a course of sessions for the best results.
2
Low Level Light Therapy (LLLT)
LLLT uses controlled LED light to gently warm the eyelids. This helps soften and release blocked oils within the meibomian glands. By improving gland function, LLLT supports a more stable tear film and reduces how quickly your tears evaporate.
LLLT is comfortable and non invasive, and it is often used alongside other treatments as part of a broader dry eye management plan.
3
Omega 3 Supplementation
4
Lubricating Eye Drops
5
Eyelid Hygiene and Lifestyle Adjustments
What to Expect During Dry Eye Treatment
Most dry eye treatments are gentle and well tolerated. Patients undergoing IPL or LLLT often describe mild warmth during the session and may notice slight, temporary redness afterwards. Results are usually gradual rather than immediate, particularly when treating gland dysfunction. Several sessions may be recommended to achieve the best long term improvement.
It is also worth noting that dry eye is often a long term condition. While it cannot always be cured completely, it can usually be managed very effectively with the right combination of treatments and lifestyle habits.
When Should You See a Specialist?
If you experience persistent dryness, irritation, redness or blurred vision that does not improve with standard eye drops, it is worth booking a specialist assessment. Early diagnosis makes a real difference. It allows your specialist to identify the underlying cause of your symptoms and begin targeted treatment before the condition progresses further.
Get Expert Dry Eye Care at Centre for Sight
At Centre for Sight, our specialists offer advanced diagnostic assessments and personalised dry eye treatments, including IPL, LLLT and Omega 3 supplementation. With clinics in London, Sussex and Surrey, our consultant led approach is designed to identify the root cause of your symptoms and provide a treatment plan tailored to you.
If you are ready to find lasting relief from dry eye, book a consultation with our team today.
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