Choroidal thickness measurements around the optic disc in healthy subjects using Swept‐Source optical coherence device

• Published in: Acta ophthalmologica (Oxford, England) Vol. 95; no. S259
• Main Authors: Cipres Alastuey, M, Garcia Martin, E, Bambo Rubio, MP, Vilades Palomar, E, Rodrigo Sanjuan, MJ, Satue Palacian, M, Orduna Hospital, E, Obis Alfaro, J
• Format: Journal Article
• Language: English
• Published: Malden Wiley Subscription Services, Inc 01.09.2017
• Subjects: Eye; Optic nerve; Optical Coherence Tomography; Optics; Thickness measurement
• ISSN: 1755-375X; 1755-3768
• DOI: 10.1111/j.1755-3768.2017.0T032

Purpose To measure the peripapillary choroidal thickness in an extensive area around the optic nerve and several established sections in healthy subjects using a swept‐source optical coherence tomography (SS‐OCT) device. Methods A total of 86 healthy subjects were included in the study. An optic disc 6.0 × 6.0 mm three‐dimensional scan of the right eye was obtained using the Deep Range Imaging (DRI) OCT Triton. Centered in the optic disc a 26x26 cube‐grid was generated to automatically measure the choroidal thickness. Seven choroidal zones were established and analysed: 3 superior (temporal, central, and nasal), 3 inferior (temporal, central, and nasal) and the optic nerve head Results Peripapillary coroidal thickness was significantly thinner in the central superior, nasal superior, and nasal inferior zones in healthy eyes. Choroidal thickness in the central superior zone was 156.17 ± 80.89 μm; in the nasal superior zone was 168.34 ± 73.45 μm and in the nasal inferior zone was 137.47 ± 65.96 μm. Conclusions Peripapillary choroidal thickness in healthy subjects is higher in the temporal and superior zones around the optic disc. SS‐OCT could be a useful tool to evaluate choroidal thinning.