Which location term refers to central, axial involvement in a cataract?

Which location term refers to central, axial involvement in a cataract?

• A. Capsular
• B. Axial
• C. Subcapsular
• D. Equatorial

Answer: (B)

Central, axial involvement means the opacity sits along the visual axis—the straight line through the pupil to the center of the lens. This location directly blocks the main path of light entering the eye, so vision is most noticeably affected. The other terms describe different parts of the lens: capsular refers to the lens capsule itself, subcapsular means beneath the capsule (often near the back of the lens), and equatorial denotes the peripheral zone around the lens edge. Because axial specifically denotes the central, line-of-sight region, it best captures central involvement of a cataract.

Central, axial involvement means the opacity sits along the visual axis—the straight line through the pupil to the center of the lens. This location directly blocks the main path of light entering the eye, so vision is most noticeably affected. The other terms describe different parts of the lens: capsular refers to the lens capsule itself, subcapsular means beneath the capsule (often near the back of the lens), and equatorial denotes the peripheral zone around the lens edge. Because axial specifically denotes the central, line-of-sight region, it best captures central involvement of a cataract.