Table 2.

Clinical baseline characteristics of study subjects (n=45)

Characteristics		n	(%)
Mode of inheritance	Autosomal recessive	12	26.7%
	Autosomal dominant	6	13.3%
	Sporadic	27	60.0%
ERG	Subnormal	2	4.4%
	Non-recordable	43	95.6%
		Mean	SD
Estimated age of onset	(Years old)	27.4	16.9
Estimated duration	(Years)	17.6	14.3

Abbreviations: ERG, electroretinogram; SD, standard deviation.