Symptom Information: Sort according to HPO 

1
(HPO:0000505) Visual impairment 297 / 7739
2
(HPO:0000613) Photophobia 158 / 7739
3
(HPO:0000639) Nystagmus 555 / 7739
4
(OMIM) Colorblindness, severe to complete 1 / 7739
5
(OMIM) Absent cone responses on electroretinography (ERG) 1 / 7739
6
(OMIM) Normal rod function on ERG 1 / 7739
7
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
8
(HPO:0000548) Cone/cone-rod dystrophy 47 / 7739
9
(HPO:0007663) Reduced visual acuity 100 / 7739