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Choroidal nevus is the fancy term for a freckle in the back of the eye.
Read more: What to Know About a Freckle in the Back of Your Eye
Have you ever wondered what happens to the visual system as we age? What does the term "second sight" mean? What is presbyopia? What are the eyes more susceptible to as the aging process occurs? What can be done to prevent certain aging factors of the eye? The answer lies in a theory known as apoptosis (no that's not the name of the latest pop artist).