Symptom Information: Sort according to HPO 

1
(HPO:0000505) Visual impairment 14681825 IBIS 297 / 7739
2
(HPO:0000543) Optic disc pallor 14681825 IBIS 67 / 7739
3
(HPO:0001133) Constriction of peripheral visual field 14681825 IBIS 33 / 7739
4
(HPO:0007688) Undetectable light- and dark-adapted electroretinogram 14681825 IBIS 9 / 7739
5
(HPO:0007843) Attenuation of retinal blood vessels 14681825 IBIS 25 / 7739
6
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
7
(HPO:0000510) Rod-cone dystrophy 266 / 7739