The American Optometric Association provides doctor-reviewed, doctor-approved information about the most common eye conditions. If you are having vision or eye problems, see an AOA-member doctor of optometry today.

Conjunctivitis (pink eye)

Often referred to casually as “pink eye”, conjunctivitis is the swelling or inflammation of the conjunctiva, the thin, transparent layer of tissue that lines the inner surface of the eyelid and covers the white part of the eye. Causes may or may not be infectious.

Blepharitis

Blepharitis is an inflammation of the eyelids in which they become red, irritated and itchy with dandruff-like scales that form on the eyelashes. It is a common eye disorder caused by either bacteria or a skin condition, such as dandruff of the scalp or rosacea.

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Acanthamoeba

Acanthamoeba is one of the most common organisms in the environment. Although it rarely causes infection, when it does occur, it can threaten your vision.

Accommodative dysfunction

Accommodative dysfunction is an eye-focusing problem resulting in blurred vision—up close and/or far away— frequently found in children or adults who have extended near-work demand.

Amblyopia (lazy eye)

Amblyopia—also known as lazy eye—is the loss or lack of development of clear vision in one or both eyes.

Anterior uveitis

Anterior uveitis is an inflammation of the middle layer of the eye. This middle layer includes the iris (colored part of the eye) and adjacent tissue, known as the ciliary body.

Cataract

A cataract is a cloudy or opaque area in the normally clear lens of the eye. Depending upon its size and location, it can interfere with normal vision.

Chalazion

A chalazion is a slowly developing lump that forms due to blockage and swelling of an oil gland in the eyelid.