Symptom Information: Sort according to HPO 

1
 (HPO:0000505) Visual impairment 297 / 7739
2
 (HPO:0000662) Nyctalopia 92 / 7739
3
 (HPO:0007843) Attenuation of retinal blood vessels 25 / 7739
4
 (HPO:0000007) Autosomal recessive inheritance 2538 / 7739
5
 (HPO:0000510) Rod-cone dystrophy 266 / 7739