Question

question 21 (mandatory) (2 points)
listen
what is the leading cause of blindness?
cataract
trachoma
diabetic retinopathy
glaucoma
question 22 (mandatory) (2 points)
listen
the part of the retina that is located around the fovea centralis is referred to as the:
optic disc
macula
optic cup
physiological cup

Explanation:

• Question 21: Cataract is the leading cause of blindness globally. It is an opacity of the lens of the eye. Trachoma is an infectious disease (though it can cause blindness), diabetic retinopathy is related to diabetes - induced retinal damage, and glaucoma is related to increased intra - ocular pressure. But cataract has a higher prevalence as a cause of blindness.
• Question 22: The macula is the part of the retina around the fovea centralis. The optic disc is the area where the optic nerve leaves the eye (blind spot), the optic cup is an embryonic structure, and the physiological cup is a part of the optic disc.

Answer:

Question 21: cataract
Question 22: Macula