TABLE 1.

Participant characteristics

ID No.	Age	Sex	Right Hand Score	wpm	Age Onset	Light Sense	Years Reading	Cause of Blindness
Early blind
Early 2	51	M	82	152.0	0	None	45	Retrolental fibroplasia
Early 3	51	F	100	143.8	0	None	47	Optic nerve
Early 4	36	F	45	76.0	0	Some	27	Optic nerve
Early 5	41	F	100	99.6	3	None	36	Glaucoma
Early 7	70	M	100	63.8	5	None	63	Cataracts
Early 9	46	M	100	n/a	0	None	42	Retrolental fibroplasia
								Leber’s Congenital
Early 11	25	M	82	76.0	0	Some	20	Amaurosis
Early 12	24	M	100	72.5	0	None	20	Retrolental fibroplasia
Early 13	68	F	91	88.7	0	None	60	Eye infection
Avg	45.8		89	96.6	0.9		40
Late blind
Late 1	37	F	55	81.8	7	Yes	31	Rubella
Late 2	52	M	100	66.5	10	None	47	Glaucoma
Late 3	42	M	82	72.5	11	None	31	Coats’ disease
Late 4	64	M	100	83.9	12	None	56	Glaucoma
Late 5	68	F	100	n/a	21	None	50	Retinitis pigmentosa
Late 6	49	F	100	125.0	27	None	20	Retinitis pigmentosa
Late 7	48	F	100	32.6	36	None	10	Stephen–Johnson syndrome
Avg	51.4		91	77.0	17.7		35
Sighted
Sighted 1	58	M	100
Sighted 2	46	M	100
Sighted 3	22	M	100
Sighted 4	46	M	100
Sighted 5	20	M	100
Sighted 6	48	M	100
Sighted 7	27	F	100
Sighted 8	22	F	100
Avg	42.5		100