Table 1.

Clinical details of 168 Korean patients with inherited retinal degeneration

Clinical details			n (%)
Clinical diagnosis	Photoreceptor disease	Retinitis pigmentosa	102 (60.4%)
		Cone and cone-rod dystrophy	22 (13.1%)
		Usher syndrome	3 (1.8%)
		Congenital stationary night blindness	2 (1.2%)
		Leber congenital amaurosis	2 (1.2%)
		Bardet–Biedl syndrome	1 (0.6%)
		Joubert syndrome	1 (0.6%)
	Macular disease	Stargardt macular dystrophy	13 (7.7%)
		Vitelliform macular dystrophy	11 (6.5%)
		North Carolina macular dystrophy	1 (0.6%)
		Other macular dystrophy	8 (4.8%)
	Choroideraemia		2 (1.2%)
Inheritance pattern	Autosomal recessive		67 (39.9%)
	Autosomal dominant		35 (20.8%)
	X-linked		6 (3.6%)
	Simplex		60 (35.7%)