Symptom Information: Sort according to HPO 

1
(HPO:0000543) Optic disc pallor 67 / 7739
2
(HPO:0000662) Nyctalopia 92 / 7739
3
(HPO:0001141) Severe visual impairment 11 / 7739
4
(HPO:0007737) Bone spicule pigmentation of the retina 26 / 7739
5
(HPO:0007843) Attenuation of retinal blood vessels 25 / 7739
6
(HPO:0008323) Abnormal light- and dark-adapted electroretinogram 5 / 7739
7
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
8
(HPO:0000510) Rod-cone dystrophy 266 / 7739