age related macular degeneration<unk>  can be used in detecting central visual field defects in following conditions: * Age-related macular degeneration: The<unk>  will help detecting the progression of AMD from dry form to wet form. Chance of metamorphopsia is more in wet AMD compared to dry form. * Choroidal neovascular membranes: Choroidal neovascular membranes cause scotoma and metamorphopsia. It may be associated with many diseases like macular degeneration, POHS, myopic macular degeneration, trauma etc. * Central serous chorioretinopathy: CSCR Causes round or oval scotoma. * Macular pucker: Macular pucker also known as an epiretinal membrane cause metamorphopsia and distortions in central field of vision. * Cystoid macular edema: Due to macular edema, micropsia may occur. * Glaucoma:<unk>  is useful in detecting central field defects in moderate to severe glaucoma. * Macular sparing:<unk>  can be used to detect and accurately measure macular sparing.
Amsler grid
Haller index
Jaeger chart
Challacombe scale
Mentzer index
Monoyer chart
Lund and Browder chart
Barber–Johnson diagram