Amaurosis and Vision defect

Amaurosis noun - Partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain.

Vision defect and amaurosis are semantically related. In some cases you can use "Vision defect" instead a noun "Amaurosis".

Vision defect noun - Impairment of the sense of sight.

Amaurosis and vision defect are semantically related. Sometimes you can replace term "Amaurosis" with "Vision defect", this terms are similar.