Optical Coherence Tomography Parameters Related to Vision Impairment in Patients with Diabetic Macular Edema: A Quantitative Correlation Analysis

Table 1

Descriptive characteristics of the enrolled patients and the OCT parameters.

Characteristics	Value
Age (yrs), mean ± SD	57.3 ± 10.5
Gender, male (%)	37 (56.1)
Duration of diabetes mellitus (yrs), mean ± SD	12.2 ± 7.0
Previous PRP, N (%)
PRP	53 (53)
Non-PRP	47 (47)
Lens status
Phakic, n (%)	82 (82)
Pseudophakic	18 (18)
BCVA (ETDRS letters), mean ± SD	58.2 ± 12.2
OCT parameters
Central retinal thickness	522.5 ± 168.5
Subretinal fluid
N (%)	38 (38%)
Height, mean ± SD	191.5 ± 131.7
Intraretinal cysts
N (%)	97 (97%)
Height, mean ± SD	343.8 ± 167.6
Sponge-like retinal swelling
N (%)	80 (80%)
Height, mean ± SD	377.5 ± 100.2
HRF, N
Few	16
Moderate	48
Many	25
Dense	11
Ellipsoid zone, N
Integrity	38
Dot-like irregularity	41
Partial irregularity	18
Lack of continuity	3

N = number of eyes.