What type of visual symptoms may result from idiopathic choroidal neovascularization?

A. Metamorphopsia or blurry vision is the correct response because idiopathic choroidal neovascularization (CNV) often affects the macula, which is the central part of the retina responsible for sharp, detailed vision. When abnormal blood vessels grow in the choroid layer of the eye and leak fluid or blood, this can distort visual perception.

Patients commonly report symptoms like metamorphopsia, where straight lines appear wavy or distorted, and blurry vision due to the disruption in the normal retinal architecture. These visual changes are often among the first indicators of CNV, making them characteristic symptoms of this condition.

Other visual symptoms listed, while they can occur in various ocular diseases, are less specifically associated with idiopathic CNV. Night blindness typically relates more to rod photoreceptor function and is not a primary symptom of CNV. Peripheral vision loss might suggest other retinal or optic nerve issues rather than localized changes from CNV. Sudden complete vision loss is more indicative of retinal detachment or severe retinal ischemia rather than the gradual deterioration often seen with choroidal neovascularization.