Symptom Information: Sort according to HPO 

1
(HPO:0000365) Hearing impairment Occasional [Orphanet] 539 / 7739
2
(HPO:0000512) Abnormal electroretinogram Frequent [Orphanet] 61 / 7739
3
(HPO:0000518) Cataract Frequent [Orphanet] 454 / 7739
4
(HPO:0000639) Nystagmus Frequent [Orphanet] 555 / 7739
5
(HPO:0001250) Seizures Frequent [Orphanet] 1245 / 7739
6
(HPO:0001252) Muscular hypotonia Frequent [Orphanet] 990 / 7739
7
(HPO:0002084) Encephalocele Frequent [Orphanet] 70 / 7739
8
(HPO:0004374) Hemiplegia/hemiparesis Frequent [Orphanet] 158 / 7739
9
(HPO:0000572) Visual loss Very frequent [Orphanet] 272 / 7739
10
(HPO:0002334) Abnormality of the cerebellar vermis Frequent [Orphanet] 137 / 7739
11
(HPO:0002536) Abnormal cortical gyration Frequent [Orphanet] 72 / 7739
12
(HPO:0000510) Rod-cone dystrophy Very frequent [Orphanet] 266 / 7739
13
(HPO:0012795) Abnormality of the optic disc Very frequent [Orphanet] 187 / 7739
14
(HPO:0100692) Increased corneal curvature Frequent [Orphanet] 13 / 7739
15
(HPO:0012758) Neurodevelopmental delay Occasional [Orphanet] 949 / 7739
16
(HPO:0000006) Autosomal dominant inheritance 2518 / 7739
17
(HPO:0001425) Heterogeneous 132 / 7739
18
(HPO:0007875) Congenital blindness 9 / 7739