Symptom Information: Sort according to HPO 

1
 (HPO:0000510) Rod-cone dystrophy 266 / 7739
2
 (HPO:0000662) Nyctalopia 92 / 7739
3
 (HPO:0001133) Constriction of peripheral visual field 33 / 7739
4
 (HPO:0007688) Undetectable light- and dark-adapted electroretinogram 9 / 7739
5
 (HPO:0007737) Bone spicule pigmentation of the retina 26 / 7739