First Author: P.Calvo SPAIN
Co Author(s): F. Bartol B. Abadia C. Isanta O. Ruiz Moreno A. Ferreras
Back to previous
To study structural changes of the choroidal thickness between old and young healthy adults originated from swept source-optical coherence tomography (SS-OCT).
Miguel Servet University Hospital, Zaragoza, Spain
Prospective, cross-sectional study, including 30 eyes of 15 young adults and 62 eyes of 31 aged patients. After obtaining 30 lines of a 9.0x9.0 mm cube SS-OCT scan centreed the fovea, the mean thickness of the 900 points was plotted. Five zones depending on choroidal thickness (zone 1 <155μm, zone 2 155-180μm, zone 3 180-205μm, zone 4 205-230μm and zone 5 >230μm) were established and compared between groups using Student’s t-test. Macular choroidal thickness measures were obtained with the Triton DR1 optical coherence tomography (Triton DR1 OCT, Topcon).
Mean age was 28.34 ± 4.07 in the young group and 67.37 ± 7.9 years in the aged group. No differences were found in intraocular pressure or axial length (p>0.05). The choroid was significantly thinner in aged patients at zones 3 (p<0.001), 4 (p<0.001) and 5 (p=0.03). Peripheral zones (1 and 2) did not show significant differences (p>0.05) between groups.
Choroidal thickness assessed with SS-OCT showed a decrease with age, but this reduction does not affect equally all macular area. Some choroidal zones are clearly more sensitive to aging.