this is a c/o 38 yr old female with DV BE . RE BCVA: 6/9p, LE BCVA : 6/60, NO significant personal or family history, not on any medications. her fundus pic and ffa images have been posted. no h/o nyctalopia .on testing she has cv deficiency of tritan type... is her diagnosis: bietti crystalline dystrophy. why does she have such gross difference in vision in both eyes. what is further management.