AOR
Archives of Ophthalmological Research

The Archives of Ophthalmological Research aims to publish issues related to publish articles of the highest scientific and clinical value at an international level, and accepts articles on these topics. The target audience of the journal included specialists and physicians working in ophthalmology, and other health professionals interested in these fields.

eISSN: 3023-6479
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Original Article
Subfoveal Suprachoroidal Space and Choroidal Thickness Changes After a Near-Vision Task in Healthy Young Adults
Abstract
Aims: To evaluate subfoveal suprachoroidal space (SCS) and choroidal thickness (ChT) changes immediately after a near-vision task.
Methods: This prospective within-subject before-and-after study included one eye from each of 74 healthy adults aged 18-40 years. After 5 minutes of seated rest, a baseline structural macular optical coherence tomography scan was obtained. Participants then completed a 3-minute near-vision task using a high-contrast target at 33 cm, and the scan was repeated immediately after the task. SCS and choroidal thicknesses were measured by two masked graders. The primary outcome was within-eye SCS thickness change from baseline, assessed with a paired t-test. Choroidal thickness change and the Pearson correlation between changes in the two thickness measurements were also evaluated.
Results: The study included 74 participants (36 male and 38 female) with a mean age of 28.6±6.4 years. SCS thickness increased from 29.8±6.8 to 41.2±8.9 µm (mean change, +11.4 µm; 95% CI, 10.6-12.3 µm; p<.001). ChT decreased from 258.4±64.2 to 231.6±58.8 µm. ΔChT and ΔSCS were negatively correlated (r=-0.64; 95% CI, -0.76 to -0.48; p<.001). The visible-SCS subgroup (n=65) showed a similar correlation (r=-0.65).
Conclusion: The post-task SCS increase and ChT decrease were negatively correlated. These exploratory associations do not establish mechanical coupling or volume redistribution.

Keywords : Accommodation; Near Work; Suprachoroidal Space; Choroidal Thickness; Optical Coherence Tomography

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1. Woodman-Pieterse EC, Read SA, Collins MJ, Alonso-Caneiro D. Regional changes in choroidal thickness associated with accommodation. Invest Ophthalmol Vis Sci. 2015;56(11):6414-6422. doi:10.1167/iovs.15-17102
2. Liu M, Wang Y, Li H, et al. Differences in choroidal responses to near work between myopic children and young adults. Eye Vis (Lond). 2024;11(1):12. doi:10.1186/s40662-024-00382-5
3. Krohn J, Bertelsen T. Corrosion casts of the suprachoroidal space and uveoscleral drainage routes in the human eye. Acta Ophthalmol Scand. 1997;75(1):32-35. doi:10.1111/j.1600-0420.1997.tb00245.x
4. Yiu G, Pecen P, Sarin N, et al. Characterization of the choroid-scleral junction and suprachoroidal layer in healthy individuals on enhanced-depth imaging optical coherence tomography. JAMA Ophthalmol. 2014;132(2):174-181. doi:10.1001/jamaophthalmol.2013.7288
5. Spaide RF, Koizumi H, Pozzoni MC. Enhanced depth imaging spectral-domain optical coherence tomography. Am J Ophthalmol. 2008;146(4):496-500. doi:10.1016/j.ajo.2008.05.032
6. Chiang B, Jung JH, Prausnitz MR. The suprachoroidal space as a route of administration to the posterior segment of the eye. Adv Drug Deliv Rev. 2018;126:58-66. doi:10.1016/j.addr.2018.03.001
7. Rahman W, Chen FK, Yeoh J, Patel P, Tufail A, Da Cruz L. Repeatability of manual subfoveal choroidal thickness measurements in healthy subjects using the technique of enhanced depth imaging optical coherence tomography. Invest Ophthalmol Vis Sci. 2011;52(5):2267-2271. doi:10.1167/iovs.10-6024
8. Croft MA, Nork TM, McDonald JP, Katz A, Lutjen-Drecoll E, Kaufman PL. Accommodative movements of the vitreous membrane, choroid, and sclera in young and presbyopic human and nonhuman primate eyes. Invest Ophthalmol Vis Sci. 2013;54(7):5049-5058. doi:10.1167/iovs.12-10847
9. Nickla DL, Wallman J. The multifunctional choroid. Prog Retin Eye Res. 2010;29(2):144-168. doi:10.1016/j.preteyeres.2009.12.002
10. Başkan B, Evcimen Y, Yarımağa İ, Ayyürek F. Acute effects of standardized cervical flexion on intraocular pressure, choroidal thickness, and peripapillary capillary density: a prospective self-controlled study. East J Med. 2026;31(3):432-440. doi:10.5505/ejm.2026.53077
11. Ha A, Kim YK, Park YJ, Jeoung JW, Park KH. Intraocular pressure change during reading or writing on smartphone. PLoS One. 2018;13(10):e0206061. doi:10.1371/journal.pone.0206061
Article available in :
Volume 3, Issue 3, 2026
Page : 61-65
https://doi.org/10.51271/AOR-0058
Article Information
Received : 20 Ağu 2026
Accepted : 21 Eyl 2026
Published : 24 Eyl 2026
Corresponding Author :

Yusuf Evcimen: Department of Ophthalmology, SBU Van Training and Research Hospital, Van, Turkiye

[email protected]
Citation : Evcimen Y, Yarımağa İ, Güleşce M. Subfoveal suprachoroidal space and choroidal thickness changes after a near-vision task in healthy young adults. Arch Ophthalmol Res. 2026;3(3):61-65. doi:10.51271/AOR-0058

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