What does the term "phac-" specifically refer to in eye terminology?

The term "phac-" specifically relates to the lens of the eye. This prefix is derived from the Greek word "phakos," which means lens or lentil. In medical terminology, it is often used to describe conditions or procedures associated with the lens, such as cataracts or phacoemulsification, a technique used in cataract surgery. Understanding this prefix helps in identifying various ophthalmic conditions and their treatments involving the lens, distinguishing it from other components of the eye like the pupil, cornea, or iris, which are indicated by different terms.