Subfoveal choroidal thickness in diabetic macular edema

Figures & data

Figure 1 OCT macula done in choroidal mode showing sclero-choroidal interface.

Figure 2 Measurement of choroidal thickness. (A) The sclero-choroidal interface is marked manually. (B) The line connects the marked points automatically by the software. (C) Measurement is done automatically between the outer choroid line and retinal pigment epithelium.

Table 1 Demographic and clinical data of the three groups

	NPDR-group -A		DME-group- B		Normal-group- C
Number of eyes	30		30		30
Gender	No	%	No	%	No	%
Male	22	73	13	43	17	57
Female	8	27	17	57	13	43
Mean ± SD
Age	50.37±7.213		53.20±5.792		44.60±7.069
BCVA	0.813±0.078		0.520±0.254		0.998±0.019
HBA1c	9.64±0.9		9.61±0.8
Duration of diabetes in years	11.47±4.819		11.63±4.453

Abbreviations: BCVA, best corrected visual acuity; DME, diabetic macular edema; HBA1c, hemoglobin A1c; NPDR, non-proliferative diabetic retinopathy.

Table 2 Data of the three groups

	Group A	Group B	Group C
Correlation between age and SFCT	r=−0.321, P=0.084	r=−0.455, P=0.012	r=−0.242, P=0.198
Correlation between BCVA and SFCT	r=0.189, P=0.316	r=−0.195, P=0.302	r=−0.181, P=0.337
Correlation between duration of diabetes and SFCT	r=−0.118, P=0.534	r=−0.136, P=0.475
Mean CSRT (µm)	229.13±16.2	336.4±74.85	223.13±16.9
Mean SFCT (µm)	260.6±49.2	259±50.8	252±50

Abbreviations: BCVA, best corrected visual acuity; CSRT, central subfield retinal thickness; SFCT, subfoveal choroidal thickness