Table 2. Clinical information for 3 probands in which mutations in other retinal disease genes not previously associated with non-syndromic RP were found.

ID	Gene	Disease previously associated	Patient Clinical Phenotype
			Age (years) when patient first aware of		Best corrected visual acuity	Hearing defects	Electroretinogram (Amplitude μV, Implicit time ms)
			Night blindness	Vision loss			Dark-adapted		Light-adapted
							OD	OS	OD	OS
5WY+Y.91	CEP290	Leber congenital amaurosis	18	22	OD 20/20 OS 20/20	No	12, 33	16, 35	11, 37	12, 36
5ES+3.87	GPR98	Usher syndrome	37	37	OD 20/20 OS 20/20	No	43, 12	40, 24	30, 37	30, 38
UFC+7.74	GRM6	Congenital stationary night blindness	25	25	OD 20/20 OS 20/25	No	NR	NR	NR	NR

All three patients underwent electroretinogram (ERG) tests following the ISCEV (International Society for Clinical Electrophysiology of Vision) standard. NR: not recordable