Certified Paraoptometric (CPO) Practice Exam 2026 - Free Paraoptometric Practice Questions and Study Guide

A small lump on the eyelid is commonly referred to as a chalazion. A chalazion arises from the blockage of an oil gland in the eyelid, leading to a localized swelling. It typically feels firm to the touch and may not cause pain, although it can sometimes become inflamed.

While a hordeolum, or stye, is also a lump that can occur on the eyelid, it is usually painful and results from an infection of the oil glands. Blepharitis refers to inflammation of the eyelid margins and may result in crusting or redness but does not specifically describe a lump. Conjunctivitis, or pink eye, affects the conjunctiva and involves redness and discharge in the eye, rather than a lump on the eyelid. Therefore, a chalazion is the most accurate term to describe a small, painless lump on the eyelid.