Table 1.

Blind subjects characteristics

Subject	Gender	Age	Years of education	Handedness	Cause of blindness	Light perception
B1	M	36	12	Bi	Congenital microphthalmia	None
B2	M	22	15	R	Congenital microphthalmia	None
B3	M	33	12	R	Congenital microphthalmia; microcornea	None
B4	M	48	12	R	Congenital glaucoma	None
B5	F	46	9	R	Congenital glaucoma	None
B6	M	40	12	R	Congenital leukoma	Faint
B7	F	50	12	R	Cataracts; congenital eyeball dysplasia	Faint
B8	M	57	12	R	Congenital eyeball dysplasia	None
B9	F	43	12	R	Congenital glaucoma	None
B10	M	48	12	R	Congenital microphthalmia; cataracts; leukoma	None
B11	M	63	9	R	Congenital glaucoma; leukoma	None
B12	F	41	12	R	Congenital optic nerve atrophy	Faint