Refraction -- test for glasses
Presbyopia -- need for reading glasses
Astigmatism -- irregular shape of eye
Cornea -- clear tissue in front of eye
Topography -- scan to determine shape of cornea
Retina -- inner lining of the back of eye
Fundus -- retina including optic nerve
OCT -- CT scan of the retina
Angiogram -- dye test to evaluate fundus
A-scan -- measurement for implant
Multifocal implant -- placed at time of cataract surgery to avoid distance and reading glasses
Toric implant -- implant to correct astigmatism
Yag laser -- implant to correct astigmatism
Amsler grid -- a grid of lines with a central fixation spot to help patients with macula degeneration monitor their vision at home
Visual field -- test for side vision in glaucoma