Final answer:
Open Angle Glaucoma typically affects both eyes, leading to progressive damage of the optic nerve and loss of peripheral vision, which can eventually result in tunnel vision.
Step-by-step explanation:
Open Angle Glaucoma (POAG) generally affects both eyes. While the disease may initially be worse in one eye than the other, POAG typically develops in both eyes over time. This chronic condition leads to progressive damage of the optic nerve, which is attributed to high eye pressure, and it is one of the leading causes of blindness for adults over 60.
The presentation of POAG can include gradual loss of peripheral vision in both eyes. This visual field loss usually starts with the peripheral vision, which can lead to tunnel vision in the advanced stages of the disease. POAG is often detected during routine eye exams, as it is usually asymptomatic until it has caused significant vision loss.