Table 1. Characteristics of the study population.

Patients with type 1 diabetes mellitus were identified as having mild nonproliferative diabetic retinopathy (NPDR) or not (noDR) by fundoscopy.

Case	Age	Gender	Duration of diabetes	HBA1c	Diagnosis	BCVA (Snellen)
DM1_P1	37	F	21	7.2	NPDR	1.0
DM1_P2	35	F	17	6.1	NPDR	1.0
DM1_P3	32	M	16	8.2	NPDR	1.0
DM1_P4	35	F	10	6.8	NPDR	1.2
DM1_P5	50	F	13	7.2	NPDR	1.0
DM1_P6	48	M	11	7.9	NPDR	1.0
DM1_P7	55	F	37	7.0	NPDR	1.0
DM1_P8	51	M	18	8.0	NPDR	1.0
DM1_P9	35	F	9	6.3	noDR	1.2
DM1_P10	46	M	9	8.9	noDR	1.0
DM1_P11	39	M	12	7.0	noDR	1.2
DM1_P12	36	M	11	8.2	noDR	1.2
DM1_P13	30	M	8	7.6	noDR	1.2
DM1_P14	36	F	9	7.0	noDR	1.0
DM1_P15	47	M	12	8.0	noDR	1.2
DM1_P16	29	F	14	8.0	noDR	1.0
C30	29	F	-	-	Control	1.0
C31	27	F	-	-	Control	1.2
C32	28	F	-	-	Control	1.2
C33	34	M	-	-	Control	1.0
C34	28	M	-	-	Control	1.2
C35	29	F	-	-	Control	1.2
C36	40	F	-	-	Control	1.0
C37	39	F	-	-	Control	1.0
C38	28	F	-	-	Control	1.2
C39	42	M	-	-	Control	1.2
C40	27	F	-	-	Control	1.0
C41	47	M	-	-	Control	1.2
C42	30	F	-	-	Control	1.0
C43	36	M	-	-	Control	1.2
C44	39	F	-	-	Control	1.0
C45	33	M	-	-	Control	1.2
C46	56	M	-	-	Control	1.0
C47	44	F	-	-	Control	1.0
C48	52	F	-	-	Control	1.0
C49	38	F	-	-	Control	1.2

HBA1c = glycohemoglobin serum level; BCVA = Best Corrected Visual Acuity