A stye (also referred to as a hordeolum) is a small, red, and painful lump that grows from the base of your eyelash or under the eyelid. Most styes are cause by a bacterial infection. This may present a number of ways, appearing on the inner eyelid, or the outermost lid. Most forms of styes are caused by a condition called blepharitis.

A chalazion is a swollen bump, or a clogged oil gland that lines the eyelid margin. This is often the result of a stye, or hordeolum. Most chalazions do not have pain but can cause discomfort and impact vision.

Chalazion: Overview



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