Question

current attempt in progress
doreen noticed recently that she has trouble with her central vision; however, her vision to the sides of her seems fine. whatever she focuses on seems blurry. doreen may have an issue with her

sclera.
pigment epithelium.
peripheral retina.
fovea.

Explanation:

The fovea is responsible for sharp central - vision. Since Doreen has trouble with central vision but not peripheral vision, an issue with the fovea is likely. The sclera is the tough outer - layer of the eye and not directly related to vision quality. The pigment epithelium supports the retina but is not the main site for central - vision problems. The peripheral retina is related to side - vision, which Doreen does not have trouble with.

Answer:

fovea.