Worried about the festive season because of bright lights?
Light sensitivity—also known as photophobia—is a common symptom that can stem from a variety of causes. While it’s often temporary, persistent discomfort when exposed to bright lights can indicate an underlying eye condition that may need professional attention.
At Centre for Sight, we see many patients who describe symptoms such as haloes, glare, or general sensitivity to light. This blog explores why bright lights might hurt your eyes, what it could mean, and when it’s time to book an eye examination.
Why do bright lights hurt my eyes?
Sensitivity to bright lights occurs when the eyes react more strongly than usual to natural or artificial light sources. This happens because the cornea, lens, retina, or optic nerve—each responsible for processing light—may be overstimulated or affected by irritation or imbalance.
Common causes include:
- Dry eyes – A lack of sufficient tear film can make the surface of the eye more exposed and sensitive to light.
- Eye strain – Extended screen time or poor lighting can fatigue the eyes, increasing light sensitivity.
- Corneal irritation – Conditions like infections or recent surgery (including laser eye surgery) can temporarily heighten sensitivity.
- Migraine – Bright light is a well-known migraine trigger and symptom.
- Eye conditions – Cataracts, glaucoma, or other issues affecting the cornea or retina can cause glare and haloes around lights.
Learn more about the advanced diagnostic technology we use for vision correction and eye conditions at Centre for Sight.
When should I worry about light sensitivity?
Mild sensitivity after spending time in the sun or looking at a screen for too long is quite normal. However, if your eyes are frequently uncomfortable around bright lights, or if you notice other symptoms such as blurred vision, pain, redness, or haloes, it’s time to seek professional advice.
Light sensitivity can sometimes signal conditions that require treatment, such as corneal inflammation, infection, or early cataract formation. Persistent haloes or glares—particularly when driving at night—should never be ignored, as they may indicate changes in the cornea or lens clarity.
If you’ve previously undergone laser eye surgery, temporary light sensitivity can occur during the healing phase, but this usually improves within weeks as your eyes stabilise. Our team provides detailed aftercare to help manage these short-term effects.
Understanding haloes and glares around lights
Seeing haloes (rings of light) or glare (a diffused glow) around bright objects can be disorientating, especially in low-light conditions. These visual effects are often caused by the way light is scattered as it enters the eye.
Common explanations include:
- Cataracts – Clouding of the lens causes light to scatter, creating haloes.
- Dry eye syndrome – Irregular tear film can distort light entering the eye.
- Refractive changes – Even minor prescriptions or corneal irregularities can cause glares at night.
- Post-surgery recovery – After procedures like LASIK or SMILE, some patients experience temporary haloes as the cornea heals.
At Centre for Sight, we use state-of-the-art imaging systems to detect and monitor these issues, allowing our consultants to recommend effective, personalised solutions.
Managing discomfort from bright lights
While some causes of light sensitivity require treatment, there are practical steps you can take to reduce discomfort day-to-day:
- Wear sunglasses outdoors, even in winter, to filter UV light.
- Use anti-reflective lenses if you wear glasses to reduce glare from screens or headlights.
- Take regular screen breaks following the 20-20-20 rule (every 20 minutes, look at something 20 feet away for 20 seconds).
- Keep your eyes lubricated with preservative-free artificial tears if you suffer from dryness.
- Adjust lighting at home and work to ensure it’s soft, diffused, and not overly harsh.
If your symptoms persist despite these changes, book a consultation with one of our specialists. Persistent photophobia can often be eased once the underlying cause is identified and treated.
When to see an eye specialist
Seek urgent medical attention if your light sensitivity is accompanied by severe eye pain, sudden vision loss, or ongoing redness, as these can be signs of serious eye conditions. Even without severe symptoms, recurring discomfort or haloes can still benefit from assessment.
At Centre for Sight, we provide comprehensive eye examinations using advanced diagnostic tools to identify the root cause of your sensitivity. From dry eye management and prescription updates to laser eye treatments and cataract care, our experts tailor solutions to restore comfort and visual clarity.
Learn more about our consultation process and how we can help you see more clearly and comfortably again.
Clinical reassurance and long-term eye care
Photophobia and glare are symptoms, not diseases themselves. With accurate diagnosis and expert treatment, they can often be resolved or managed effectively. Our dedicated ophthalmologists and aftercare team work with patients every step of the way to ensure any condition affecting comfort or vision is thoroughly addressed.
For more information about common causes of light sensitivity and when to seek help, you can refer to the NHS photophobia guidance for additional reassurance.
If bright lights hurt your eyes or you’ve noticed new haloes or glare, don’t ignore the signs. Visit your nearest Centre for Sight clinic or book a consultation to discuss your symptoms with one of our leading ophthalmic specialists.
