Longitudinal Alterations of Retinal and Choroidal Structure in Patients Recovered from COVID-19

Table 1

Retinal parameter over the study period.

		Baseline thickness (µm)	1st month thickness (µm)	3rd month thickness (µm)	P
Fovea	Full retina	249.7 ± 13.6	251.5 ± 14.8	246.7 ± 33.4	T = 0.43
	Inner retina	68.3 ± 8.1	69.2 ± 8.5	70.1 ± 7.3	T = 0.72
	Outer retina	181.5 ± 8.2	181.9 ± 8.1	182.8 ± 8.0	T = 0.56
Parafovea full	Whole	308.6 ± 12.8	310.5 ± 12.9	313.9 ± 13.9	T = 0.16
	Sup. hemisphere	309.9 ± 13.1	310.7 ± 12.9	313.1 ± 13.7	T = 0.058
	Inf. hemisphere	308.8 ± 13.2	309.1 ± 12.6	311.9 ± 13.1	T = 0.06
	Temporal	300.3 ± 12.2	301.0 ± 11.8	303.5 ± 12.5	T = 0.18
	Superior	314.5 ± 13.1	315.5 ± 11.1	317.3 ± 14.2	T = 0.17
	Nasal	311.5 ± 11.9	312.2 ± 14.7	315.4 ± 14.8	T = 0.08
	Inferior	311.4 ± 13.2	311.1 ± 12.5	313.6 ± 13.2	T = 0.21
Inner retina	Whole	129.3 ± 7.4	128.8 ± 7.6	128.8 ± 7.9	T = 0.19
	Sup. hemisphere	129.2 ± 6.8	129.3 ± 8.1	128.3 ± 8.1	T = 0.21
	Inf. hemisphere	128.9 ± 7.9	127.8 ± 8.3	127.9 ± 8.2	T = 0.21
	Temporal	121.1 ± 7.03	119.3 ± 7.4	119.9 ± 7.0	T = 0.12
	Superior	133.1 ± 7.1	134.0 ± 8.9	132.3 ± 8.9	T = 0.14
	Nasal	129.5 ± 9.9	129.9 ± 10.3	129.1 ± 10.2	T = 0.65
	Inferior	132.3 ± 8.02	131.1 ± 8.5	131.1 ± 8.7	T = 0.23
Outer retina	Whole	179.5 ± 6.7	181.3 ± 7.2	184.3 ± 8.1	T = 0.12
	Sup. hemisphere	180.8 ± 8.1	181.7 ± 6.7	184.8 ± 7.9	T = 0.18
	Inf. hemisphere	179.8 ± 7.5	181.2 ± 8.0	183.9 ± 8.8	T = 0.08
	Temporal	179.1 ± 7.4	181.7 ± 7.2	183.4 ± 7.8	T = 0.08
	Superior	181.4 ± 8.4	181.5 ± 6.5	185.1 ± 8.5	T = 0.07
	Nasal	182.0 ± 9.7	182.5 ± 8.8	186.3 ± 10.6	T = 0.06
	Inferior	179.0 ± 7.9	180.0 ± 8.3	182.6 ± 9.8	T = 0.09
Perifovea full	Whole	283.3 ± 10.1	282.6 ± 11.8	287.7 ± 11.3	T = 0.16
	Sup. hemisphere	286.9 ± 11.3	286.5 ± 11.1	289.1 ± 11.2	T = 0.18
	Inf. hemisphere	282.3 ± 11.6	289.2 ± 10.5	283.7 ± 11.9	T = 0.59
	Temporal	274.4 ± 9.9	277.9 ± 9.7	277.4 ± 9.9	T = 0.14
	Superior	286.5 ± 11.3	288.5 ± 10.4	288.6 ± 11.3	T = 0.21
	Nasal	300.1 ± 14.8	301.5 ± 14.2	301.3 ± 14.3	T = 0.24
	Inferior	277.5 ± 11.7	278.6 ± 12.8	278.4 ± 11.9	T = 0.37
Inner retina	Whole	113.7 ± 5.1	112.8 ± 5.9	113.4 ± 5.9	T = 0.19
	Sup. hemisphere	113.8 ± 5.2	114.9 ± 5.9	113.3 ± 7.8	T = 0.24
	Inf. hemisphere	113.9 ± 5.0	113.4 ± 6.4	111.9 ± 6.3	T = 0.28
	Temporal	108.3 ± 4.3	108.1 ± 4.6	107.3 ± 4.4	T = 0.22
	Superior	112.5 ± 4.9	113.8 ± 5.9	113.1 ± 12.9	T = 0.27
	Nasal	123.0 ± 8.1	123.9 ± 8.7	120.1 ± 9.5	T = 0.18
	Inferior	111.3 ± 5.7	110.9 ± 6.5	109.9 ± 6.2	T = 0.11
Outer retina	Whole	170.1 ± 6.9	171.3 ± 6.6	174.4 ± 8.4	T = 0.12
	Sup. hemisphere	172.9 ± 8.5	174.4 ± 6.4	175.9 ± 10.2	T = 0.08
	Inf. hemisphere	168.5 ± 7.1	170.7 ± 7.4	171.9 ± 8.5	T = 0.09
	Temporal	166.0 ± 7.3	169.7 ± 6.9	170.0 ± 7.3	T = 0.09
	Superior	173.8 ± 7.6	174.7 ± 6.2	175.4 ± 15.1	T = 0.11
	Nasal	177.0 ± 9.7	177.7 ± 9.3	181.1 ± 12.0	T = 0.21
	Inferior	166.3 ± 7.2	167.7 ± 7.6	168.9 ± 8.5	T = 0.22

Based on the generalized estimating equation (GEE). SD: standard deviation.