Lesion of the retina
Location size and shape is dependent on the
location and extent of the lesion.
Causes include retinal infarcts, hemorrhage, degeneration, or infection.
If retinal lesion severe enough, entire retina may be involved leading to total loss of vision
Lesions of optic nerve can cause monocular visual loss
Causes: glaucoma, optic neuritis, elevated intracranial pressure, optic glioma, schwannoma, menigioma, or trauma