![]() Kerataconus occurs when the cornea progressively thins and causes a cone-like bulge to develop on the eye. See a doctor immediately if you have any of these symptoms. If you suddenly start seeing halos or colored rings around lights, it could be a sign of acute glaucoma. Symptoms of acute glaucoma usually appear suddenly. One type of glaucoma known as acute-angle closure glaucoma is considered a medical emergency. Glaucoma is a leading cause of blindness in the United States. Glaucoma is a condition caused by optic nerve damage related to high pressure in the fluid circulating in the front of the eye. The abnormalities in the cornea can cause someone with Fuchs’ dystrophy to see halos around lights.įuchs’ dystrophy is usually inherited, and symptoms don’t usually appear until people reach their 50s or 60s. Fuchs’ dystrophyįuchs’ dystrophy is an eye disorder that causes the clear layer on the front of your eye (cornea) to swell. ![]() Seeing halos around lights can sometimes be a side effect of the new lens. Clouding of the lens can cause diffraction of light entering the eye, which means you’ll see halos around light sources.Ĭataract surgery involves replacing your cloudy lens with a custom intraocular lens (IOL). Cataracts develop slowly and are common in older people. These include: CataractsĪ cataract is a cloudy area that forms in the lens of the eye. There are many eye conditions that can cause this to happen. Halos around lights are caused by diffraction, or bending of the light entering your eye.
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