Table 1.

Residual natural vision, anatomical and functional outcomes with the implant.

Test \ Patient	1	2	3	4	5
Residual peripheral vision
Pre-op eccentric natural acuity in the study eye	20/400 LogMAR 1.3	20/800 LogMAR 1.6	20/1000 LogMAR 1.7	20/500 LogMAR 1.4	20/500 LogMAR 1.4
Post-op eccentric natural acuity in the study eye (12 months)	20/320 LogMAR 1.2	20/800 LogMAR 1.6	20/800 LogMAR 1.6	20/400 LogMAR 1.3	20/400 LogMAR 1.3
Implant location
Implant location in the macula	Intra-choroidal	Central subretinal	Central subretinal	Off-center subretinal	Central subretinal
Average distance from implant to bottom of INL at 3, 6, 12 months (μm)	127	34	43	37	51
	103	28	35	38	39
	138	39	39	35	37
Perceptual stimulation thresholds
Chronaxie (ms)	NA	2.5	2.3	2.2	2.1
Rheobase (mW/mm2)	NA	1.0	0.4	1.4	0.5
Threshold pulse duration (ms) for 3mW/mm2	2.1	0.8	0.7	1.0	0.8
Central vision
Natural central visual perception	None	None	None	None	None
Prosthetic bar orientation, % correct, [95% CI], %	28 [20–40]	96 [93–98]	96 [93–98]	94 [86–98]	88 [75–95]
Prosthetic min. bar width on retina, pix, (% correct) [95% CI], %	2 (90%) [55–100]	1 (100%) [69–100]	1 (70%) [35–93]	1 (50%) [19–82]	1 (80%) [44–97]
Prosthetic central acuity Min. Landolt C gap, pix	Light perception	20/550 LogMAR 1.44 1.3 pix	20/500 LogMAR 1.4 1.2 pix	20/800 LogMAR 1.6 1.9 pix	20/460 LogMAR 1.37 1.1 pix