The correct answer is: B. peripheral, impaired.
Glaucoma is a condition that damages the optic nerve, which carries visual information from the eye to the brain. This damage can cause peripheral vision to be impaired, meaning that people with glaucoma may have difficulty seeing objects that are not directly in front of them.
The other options are incorrect. Option A, optical, distorted, is incorrect because glaucoma does not typically cause optical distortion. Option C, prephrastic, demurred, is incorrect because these words do not make sense in the context of the question. Option D, peripatetic, diminished, is incorrect because peripatetic means “walking about” and diminished means “made smaller or less.”
I hope this helps!