It can cause blurred vision.Ĭhalazion: An oil-making gland gets blocked and swells into a bump.Ĭonjunctivitis: Also known as pinkeye, it’s an infection or inflammation of the conjunctiva, the clear layer that covers the front of your eye.
It can make your eyes feel itchy or gritty.Ĭataract: A clouding of your eye’s internal lens.
Glasses, contact lenses, or surgery can correct the blurry vision it causes.īlack eye: Swelling and discoloration ( bruise) around your eye caused by an injury to the face.īlepharitis: Inflammation of your eyelids near the eyelashes. If you have it, your eye can’t focus light onto the retina the way it should. The weaker eye, which may or may not wander, is called the "lazy eye."Īstigmatism: A problem with the curve of your cornea. One eye sees better than the other, so your brain favors that eye. Multiple genes inherited from each parent determine a person’s eye color.Īge-related macular degeneration: Causes loss of central vision as you get older.Īmblyopia: Often called lazy eye, this condition starts in childhood. The macula is a small extra-sensitive area in the retina that gives you central vision.Įye color is created by the amount and type of pigment in your iris. Behind the eye, your optic nerve carries these impulses to the brain. It converts light into electrical impulses. The inside lining of the eye is covered by special light-sensing cells that are collectively called the retina. Light projects through your pupil and lens to the back of the eye. Most of the eye is filled with a clear gel called the vitreous. Just behind the iris and pupil lies the lens, which helps focus light on the back of your eye.
The front part (what you see in the mirror) includes: Your eye is a slightly asymmetrical globe, about an inch in diameter.
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