Which of the following is a visual field test used in VR?

• A. Amsler
• B. Tonometry
• C. OCT
• D. Color Vision Test

Answer: (A)

The central visual field around the macula and detecting metamorphopsia is what this item targets. The Amsler grid is a simple, at-a-glance tool used in vision rehabilitation to screen for distortions or small blind spots near fixation that arise from macular problems. In practice, a person covers one eye, fixates on the center dot, and notes whether all lines stay straight and all squares remain visible. If lines appear wavy, bent, or if any areas disappear, it signals changes in central retinal function that may need further assessment or rehabilitation planning. This focus on central vision and metamorphopsia makes it particularly useful in VR settings. The other options do not test the visual field in this way: tonometry measures eye pressure, not field sensitivity; OCT maps retinal structure rather than functional field data; color vision testing assesses color discrimination, not central field performance.