Symptom Checker: Halos and Glare
Light is required too see the world around us. Our eyes see light when it “bounces” off items and enters our eyes; but occasionally, this light can result in halos and glare.
Halos generally occur in dim or dark settings and looks like bright circles surrounding a source of light, such as a car’s headlights or streetlights. Glare occurs more in daylight. Light enters your eye but instead of helping you see better, it ends up interfering with your vision, like after a camera’s flash.
Causes of Halos and Glare
Halos and glare can be a normal response to bright lights but can sometimes be the result of a more serious eye problem. Correction is needed when eye problems keep the eye from properly focusing light onto your retina (the thin lining located in the back of the eye).
Halos are a common issue associated with cataracts. Cataracts are clouding of the eye’s lens which affect vision. A cataract can occur in one or both eyes are often the result of aging. This makes cataracts very common in older people.
Other common eye issues that can cause halos and glare include:
- Nearsightedness (difficulty seeing things far away)
- Farsightedness (difficulty seeing things nearby)
- Presbyopia (difficulty seeing things nearby due to aging)
- Astigmatism (blurred vision due to irregular shape of the eye)
Rarely, corrective eye procedures like LASIK and PRK can also result in halos and glare, though modern forms of eye surgery are much less likely to produce glare and halos than older procedures.
Treatment for Halos and Glare
Depending on the cause, you may be able to treat halos and glare on your own, or you may need the help of an eye doctor. Wearing sunglasses and using car visors while driving can reduce glare, and specialized lenses and contacts can sometimes reduce halos.
An eye doctor can help with:
If you have a vision problem such as nearsightedness or farsightedness, where your eyes don’t focus light on your retinas properly, wearing glasses or contact lenses can help.
The symptoms of early cataracts may be improved with new eyeglasses, brighter lighting, anti-glare sunglasses or magnifying lenses. If these measures do not help, surgery is the only effective treatment. Surgery involves removing the cloudy lens and replacing it with an artificial lens.