Retinitis pigmentosa (RP) is a progressive degeneration of the retina affecting night and peripheral vision. Which option correctly names RP?

• A. Myopia
• B. Presbyopia
• C. Hyperopia
• D. Retinitis pigmentosa (RP)

Answer: (D)

The main idea is recognizing the condition described by its pattern of vision loss. Retinitis pigmentosa is a hereditary retinal disease that progressively degenerates the retina, starting with night blindness and narrowing the visual field (loss of peripheral vision) as it advances. This combination—night vision problems plus peripheral field loss—is characteristic of RP, making its name the best fit for the description.

The other terms describe refractive errors rather than degeneration of the retina: myopia is nearsightedness, hyperopia is farsightedness, and presbyopia is age-related difficulty with near vision. They affect how light focuses on the retina but do not cause the progressive retinal degeneration or the specific pattern of night and peripheral vision loss seen in RP.