Understanding Halos around Lights: Causes and Treatment
Dr Rajeev Raut Eye Clinic Raut Eye Care

Halos around lights can be a symptom of various eye problems. Learn about their causes and treatments.

Reviewed by
Dr. Aditya Raut M.B.B.S D.O.MS
Updated on Mar 09  •  2 mins read
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What are Halos around Lights?

Halos around lights are circular rings of light that appear around a source of light, such as headlights or streetlights. These rings may appear as bright, blurry circles or as rainbow-colored circles. Halos around lights can cause glare, reduce the clarity of vision, and interfere with daily activities, such as driving.

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Causes of Halos around Lights

Halos around lights can be caused by various eye problems, such as cataracts, corneal edema, glaucoma, and dry eye syndrome. Cataracts are the most common cause of halos around lights in older adults. Corneal edema, which is the swelling of the cornea, can cause halos around lights in patients with Fuchs' dystrophy or after refractive surgeries. Glaucoma, a condition that damages the optic nerve, can cause halos around lights in patients with advanced stages of the disease. Dry eye syndrome, which is the inadequate production of tears, can cause halos around lights in patients with severe symptoms.

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Treatment for Halos around Lights

The treatment for halos around lights depends on the underlying cause. Cataracts can be treated with surgery, which replaces the cloudy lens with a clear artificial lens. Corneal edema can be treated with eye drops or a corneal transplant. Glaucoma can be treated with eye drops, laser therapy, or surgery. Dry eye syndrome can be treated with artificial tears, prescription eye drops, or punctal plugs. It is important to seek medical attention if you experience halos around lights, as this symptom can be a sign of a serious eye problem.

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Prevention of Halos around Lights

Some eye problems that cause halos around lights, such as cataracts and glaucoma, cannot be prevented. However, you can reduce your risk of developing other eye problems by maintaining a healthy lifestyle, wearing protective eyewear, and getting regular eye exams. If you experience halos around lights, avoid driving at night or in low-light conditions until you have seen an eye doctor and received a diagnosis and treatment plan.

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Article Reviewed by Dr. Aditya Raut M.B.B.S D.O.MS Cataract Lasik and refractive surgeon
Specialist in number reduction surgery, Refractive Lens exchange and ICL surgery.

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