Retinal Vessel Diameter Changes in Relation to Dark Adaptation and Acute Hyperglycemia

Table 2

Fasting and hyperglycemic retinal vessel diameters in patients with type 2 diabetes.

Patient	Fasting						Hyperglycemia
	Light		Dark adaptation				Light		Dark adaptation
	0 min		20 min		40 min		0 min		20 min		40 min
	CRAE	CRVE	CRAE	CRVE	CRAE	CRVE	CRAE	CRVE	CRAE	CRVE	CRAE	CRVE
1	191.0	257.0	189.4	265.7	189.7	271.3	181.2	249.8	189.8	274.6	194.2	269.2
2	175.0	222.2	176.8	231.4	170.9	225.7	169.5	219.6	171.6	227.2	168.8	225.0
3	181.7	234.3	182.5	239.7	191.7	253.6	186.8	239.0	190.3	256.4	189.2	255.7
4	160.3	220.8	166.2	232.2	162.4	235.8	154.7	222.1	163.1	230.4	162.7	227.6
5	176.5	245.6	176.6	245.7	177.4	252.2	176.7	248.0	176.6	247.3	180.6	246.0
6	169.7	246.0	173.2	248.3	174.9	264.1	169.2	248.4	173.3	264.5	173.5	263.7
7	150.7	189.7	153.1	203.4	153.7	199.0	147.5	184.4	154.2	196.8	151.5	195.4
8	178.5	225.5	178.6	225.9	173.5	226.3	174.9	220.7	180.6	221.2	178.3	220.8
9	142.8	206.7	145.0	206.4	144.3	205.8	141.0	199.1	140.7	194.5	139.7	196.3
10	190.2	250.0	187.8	248.6	184.2	243.3	184.1	244.4	182.7	238.5	181.1	234.7
11	153.7	214.1	155.1	217.6	154.3	217.4	155.8	216.7	154.9	215.5	157.2	217.6
12	185.8	245.6	181.7	239.4	180.6	240.2	177.4	230.5	182.5	237.0	181.7	235.5
13	167.9	192.6	171.0	194.3	170.0	197.3	165.3	195.1	168.6	192.2	164.0	192.3
14	166.6	227.2	172.7	242.8	168.6	238.8	167.3	225.8	170.0	234.0	168.9	228.7
MEAN	170.7	227.0	172.1	231.5	171.2	233.6	168.0	224.5	171.4	230.7	170.8	229.2
SD	14.8	21.0	13.2	21.0	13.8	23.1	13.8	20.8	14.3	25.4	15.0	24.3
AVR	0.75		0.74		0.73		0.75		0.74		0.75

All values are in µm. CRAE, central retinal artery equivalent; CRVE, central retinal vein equivalent.