The patient with optical agnosia could not recognize familiar faces even though they were clearly visible.
患有视觉性失认的患者即使面容清晰也无法识别熟悉的面孔。
Optical agnosia is a rare condition that affects a person's ability to recognize objects by sight.
视觉性失认是一种罕见的情况，影响一个人通过视觉识别物体的能力。