What It Really Means When Your Eyes Are Sensitive To Light

When your eyes are unusually sensitive to light, it could be a sign that something else is going on. There are several conditions that can cause light sensitivity or photophobia, and one is conjunctivitis, otherwise known as pink eye. According to Livestrong, your eyes will usually be red, feel gritty, itch, and have a crusty discharge if you have conjunctivitis. Usually, this condition clears up on its own in a couple of weeks. 

Uveitis may also be to blame (via Livestrong). It's an inflammatory disease that can cause photophobia, along with swelling. If you have uveitis, you might also have floaters, pain, redness, and blurred vision. You should see your ophthalmologist if you think you have this condition because it can lead to vision loss.

Certain medications, like pain relievers, antihistamines, and diuretics, can cause photophobia (per Livestrong). Some conditions and disorders, like migraines and albinism, might be behind your sensitivity to light. If you have experienced a head injury, like a concussion, and have confusion, blurry vision, ringing in the ears, nausea, and dizziness with photophobia, you should seek medical attention.

Your cornea is the clear protective layer over your eyes, and they contain a lot of nerves, which means they are naturally more sensitive (per SELF). If your eyes are dry and your corneas aren't being lubricated enough, this can make them not only sensitive to light, but they may sting and feel scratchy. It might also feel like something is in your eye. Your doctor may prescribe eye drops to help you resolve the issue. 

A scratched cornea can also cause photophobia. Scratches can be in the form of microscopic cuts caused by dirt, sand, dust, or contact lenses, according to Livestrong. Moreover, your cornea might be inflamed. This condition is called keratitis, and it can be caused by a viral or bacterial infection, according to SELF. Either way, this condition can make your eyes sensitive to light. If you experience pain, along with blurred vision, redness, and tearing, you should visit your doctor, who will probably prescribe medication to help.

Another corneal condition that can cause sensitivity to light is keratoconus, in which your corneas become cone-shaped. Aside from light sensitivity, keratoconus can change your vision. Your eye doctor can diagnose keratoconus and usually treat it with corrective lenses (via SELF).