Posters

Evaluation of choroidal thickness in normal subjects

Poster Details

First Author: G. Gudauskiene LITHUANIA

Co Author(s): I. Matuleviciute   D. Zaliuniene                 

Abstract Details

Purpose:

To evaluate choroidal thickness (CT) using swept-source optical coherence tomography (SS-OCT) in normal subjects.

Setting:

A prospective clinical study was performed at the Department of Ophthalmology of the Hospital of Lithuanian University of Health Sciences, Kaunas Clinics.

Methods:

60 eyes of 30 healthy Lithuanian individuals (mean age 58.87±5.14, range 50-67 years) were inspected. Patients underwent axial length (AL) measurement using Aladdin optical biometer based on optical low-coherence interferometry (Topcon, Tokyo, Japan) and CT evaluation using 1050 nm DRI Triton SS-OCT (Topcon, Tokyo, Japan). The CT at sub-foveal (SF), 1500 μm and 3000 μm nasal (N1500, N3000), temporal (T1500, T3000), superior (S1500, S3000) and inferior (I1500, I3000) to the central fovea was assessed. Measurements were performed at the same time 1-2 PM.

Results:

Mean CT was 231.35±66.79 in SF, 194.93±75.12 in N1500, 120.82±66.81 in N3000, 236.72±63.67 in T1500, 221.92±63.74 in T3000, 238.83±71.15 in S1500, 246.67±73.33 in S3000, 212.35±70.11 in I1500 and 194.3±68.68 in I3000 (expressed in µm) region. The CT was thicker in T1500, T3000 compared to N1500, N3000 and in I1500, I3000 compared to S1500, S3000 (p < 0.05). Mean AL was 23.47±0.76 mm. A negative correlation between CT and AL was detected in all subfields (p < 0.05, r range (-) 0.31 – (-) 0.42), except T3000, S1500, S3000. No correlations were observed between age and CT (p > 0.05).

Conclusions:

A negative statistically significant correlation was observed between AL and SF, T1500, N1500, N3000, I1500 and I3000 CT subfields. Choroid was significantly thicker in temporal and superior quadrants in comparison with nasal and inferior quadrants respectively. Further investigations should be continued to confirm and better clarify our findings.

Financial Disclosure:

None