Table 1. Sample detailed description.

Subject	Age	Sex	Handedness	Cause of blindness	Onset of blindness (years)	Residual Vision	Subjective perceptions of vision
1	16	F	R	Congenital nystagmus	1	Yes; light perception <5%	Yes: “I can see a white line … Honestly, I can see it but I do not feel it”
2	14	M	L	Retinitis pigmentosa	4	Yes; light perception <7%	Yes: “I can see white lines … I can see lights oriented either vertically, horizontally or obliquely … I see it but I do no longer feel it in my hand”
3	15	F	R	Bilateral uveitis	4	Yes; light perception <7%	Yes: “There are lines in grey tones, steel-like”
4	32	M	R	Retinal detachment	12	No	Yes: “I see phosphenes always oriented in the direction of the line … I see phosphenes, but can hardly feel it on the hand”
5	51	M	L	Microphtalmia and Peter's syndrome	3	Yes; light perception <3%	Yes: “I can see a luminous line on the dark screen … A major change happened when I suddenly completely forgot the tactile sensations and started seeing in my mind the lights transmitted by the stimuli”
6	69	M	R	Bilateral uveitis	35	No	Yes: “I can see light with greater and greater clarity and intensity”
7	72	F	R	Optic pathway bilateral atrophy	9	No	Yes: “It is like if I see aligned lights”
8	22	M	R	Retrolental fibroplasia	from birth	No	No
9	40	M	L	Retinal necrosis	30	No	No
10	43	M	R	Glaucoma and retinopathy	32	No	No
11	50	M	R	Optic pathway bilateral lesion	22	No	No
12	56	F	R	Macular degeneration and retinosis	29	No	No
13	57	M	R	Macular degeneration and spot degeneration	45	No	No
14	59	M	R	Congenital cataracts	From birth	Yes; light perception <7%	No
15	42	M	R	Congenital glaucoma	From birth	No	No
16	31	M	R	Retinitis pigmentosa	16	Yes; light perception <3%	No
17	64	M	R	Congenital cataracts	From birth	Yes; left eye: light perception <2% (right eye: no)	No
18	54	F	R	Optic pathway bilateral atrophy	1,5	Yes; light perception left eye <2%, light perception right eye <7%	No

M = male, F = female. R = right, L = left. L/P = light perception.