Symptom Information: Sort according to HPO 

1
(HPO:0000550) Undetectable electroretinogram 25 / 7739
2
(HPO:0000608) Macular degeneration 36 / 7739
3
(HPO:0000662) Nyctalopia 92 / 7739
4
(OMIM) Loss of peripheral vision 2 / 7739
5
(OMIM) Bone-spicule pigment deposits, retinal 1 / 7739
6
(OMIM) Extinguished electroretinograms in second or third decade 1 / 7739
7
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
8
(HPO:0000510) Rod-cone dystrophy 266 / 7739