Abstract
Purpose :
The aim of this study was to evaluate the central macular thickness (CMT) values in the eyes of patients with Dry age-related Macular Degeneration (AMD) in association with systematic hypertension, hyperlipidemia, diabetes mellitus, smoking status and family history.
Methods :
Forty eight eyes of twenty nine subjects with dry AMD were included in the study. A comphrehensive medical report regarding systemic comorbidities were obtained and CMT was evaluated via spectral domain-optical coherence tomography (SD-OCT). Central retinal thickness values were compared among participants in order to indentify systemic factors that might be correlated. Comparisons of CMT values among patients with or without a risk factor were performed by applying t-test for independent samples. Statistical significance was set at 5% (p<0.05). Data were analyzed using IBM SPSS Statistics for Windows, version 25.0. (Armonk, NY: IBM Corp).
Results :
The subjects with dry AMD (mean age: 80.60 years; SD= 8.06; 9 males, 20 females) had a mean best-corrected visual acuity (BCVA) of 0.75 logMAR. The mean time of AMD onset was 8.33, SD= 4.98. 86.2% (n=25) of patients had systemic hypertension, 69% (n=20) hyperlipidemia, 27.6% (n=8) diabetes mellitus and 58.6% (n=17) were smokers. Furthermore, 20.7% 9n=6) of patients had a family history of AMD. Mean CMT at right eyes and left eyes was 193.78 and 207.60, respectively. CMT (at both eyes) was significantly lower [t(46)=-2.182, p=.034] in patients with hypelipidemia . Specifically, in patients with hypelipidemia the Mean CMT at right and left eyes was found M=181.47, SD= 49.84 and M=198.06, SD=48.40, respectively versus M= 216.88, SD= 37.58 and M=224.56, SD= 48.88 respectively in patients without hyperlipidemia, as well.
Conclusions :
This study demonstrated that hyperlipidemia might result in a remarkably thinner CMT. Furthermore, the mean CMT values at both eyes was found to be affected in all subjects with the vast majority of them having systematic comorbidities. These findings suggest that it may be necessary to consider the presence of hypertension hypelipidemia, diabetes mellitus, smoking status and family history when central macular thickness volume is evaluated.
This is a 2021 Imaging in the Eye Conference abstract.