Table 6.

Summary of 1SD−BCEA, Percentage of Fixation Points Within 2 and 4 Degrees by Visual Acuity Level

Applied Measure and Visual Acuity Group	Data From Fixation Test			Data From Sensitivity Test			Estimate	95% CI	P Value
	N	Mean ± SD (Deg2)	(Range) (Deg2)	N	Mean ± SD (Deg2)	(Range) (Deg2)
1−SD BCEA
BCVA ≥ 20/25	17	0.33 ± 0.28	(0.04 to 1.22)	14	4.16 ± 4.98	(0.17 to 15.94)	−3.2	(−5.5, −0.80)	0.0087
BCVA 20/25 – 20/70	75	2.3 ± 5.3	(0.06 to 36.19)	72	9.16 ± 22.12	(0.16 to 163.85)	−6.9	(−11.6, −2.20)	0.004
BCVA 20/70 – 20/200	234	4.17 ± 5.48	(0.01 to 36.2)	230	12.06 ± 13.97	(0.25 to 103.93)	−8.4	(−10.6, −6.16)	<.0001
BCVA worse than 20/200	101	8.12 ± 15.32	(0.49 to 134.89)	102	16.84 ± 13.96	(0.04 to 45)	−9.9	(−13.4, −6.41)	<.0001
Percentage of points within 2 deg
BCVA ≥ 20/25	17	99% ± 2%	(94% to 100%)	14	78% ± 28%	(13% to 100%)	0.18	(0.04, 0.31)	0.0125
BCVA 20/25 – 20/70	75	87% ± 25%	(9% to 100%)	72	73% ± 29%	(10% to 100%)	0.13	(0.07, 0.19)	<.0001
BCVA 20/70 – 20/200	234	71% ± 27%	(0% to 100%)	230	45% ± 23%	(0% to 100%)	0.26	(0.23, 0.30)	<.0001
BCVA worse than 20/200	101	57% ± 27%	(0% to 98%)	102	32% ± 19%	(4% to 81%)	0.25	(0.20, 0.30)	<.0001
Percentage of points within 4 deg
BCVA ≥ 20/25	17	100% ± 0%	(99% to 100%)	14	92% ± 16%	(43% to 100%)	0.071	(0.0004, 0.14)	0.0488
BCVA 20/25 – 20/70	75	95% ± 13%	(32% to 100%)	72	88% ± 17%	(34% to 100%)	0.071	(0.036, 0.11)	<.0001
BCVA 20/70 – 20/200	234	92% ± 14%	(10% to 100%)	230	77% ± 20%	(3% to 100%)	0.15	(0.13, 0.18)	<.0001
BCVA worse than 20/200	101	85% ± 21%	(0% to 100%)	102	68% ± 21%	(13% to 99%)	0.19	(0.15, 0.24)	<.0001