The effect of light and heat upon choroidal thickness in healthy young adults

Saleh A. Alkhaldi*, Lyle S. Gray

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Aim: Investigate the effect of external factors such light and heat upon choroidal thickness in healthy adults.
Methods: 40 young healthy adults were included in this study. Choroidal thickness was measured using swept source optical co- herence tomography before and after they were exposed to different levels of light illumination and external source of heat. In the first experiment, 30 subjects were divided into 3 refractive groups (myopes, emmetropes and hyperopes). In the second experiment, another 10 myopic subjects wore pre-heated eye compress for 10 minutes.
Results: In the first experiment, no significant change in choroidal thickness was recorded after exposing the subjects to 4 differ- ent illuminations and this was the case for all participants (p > 0.05). In the second experiment, no significant change in choroidal thickness was found duo to wearing the eye compress for 10 minutes in all choroidal areas except for the outer nasal area (p > 0.05). However, one subject showed substantial change in all choroidal areas.
Conclusion: Short exposure to different illuminations has no significant effect upon choroidal thickness. Wearing pre-heated eye compress did not substantially affect choroidal thickness except for outer nasal area, while one subject showed substantial change in all choroidal areas which requires further investigation.
Original languageEnglish
Pages (from-to)103-111
Number of pages8
JournalActa Scientific Ophthalmology
Volume4
Issue number4
DOIs
Publication statusPublished - 10 Mar 2021

Keywords

  • choroid
  • choroidal thickness
  • optical coherence tomography
  • light exposure
  • outdoor activity
  • eye compress

ASJC Scopus subject areas

  • Optometry

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