Daily morning light therapy is associated with an increase in choroidal thickness in healthy young adults

Scientific Reports
Scott A ReadLinda Tran

Abstract

Ambient light exposure is one environmental factor thought to play a role in the regulation of eye growth and refractive error development, and choroidal thickness changes have also been linked to longer term changes in eye growth. Therefore in this study we aimed to examine the influence of a 1-week period of morning light therapy upon choroidal thickness. Twenty two healthy young adult subjects had a series of macular choroidal thickness measurements collected with spectral domain optical coherence tomography before, and then following a 7-day period of increased daily light exposure. Increased light exposure was delivered through the use of commercially available light therapy glasses, worn for 30 minutes in the morning each day. A significant increase in subfoveal choroidal thickness (mean increase of +5.4 ± 10.3 µm) was found following 7-days of increased daily light exposure (p = 0.02). An increase in choroidal thickness was also observed associated with light therapy across the central 5 mm macular region. This study provides the first evidence in the human eye that daily morning light therapy results in small magnitude but statistically significant increases in choroidal thickness. These changes may have implications fo...Continue Reading

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Citations

Nov 15, 2019·The British Journal of Ophthalmology·Gareth LinghamSeyhan Yazar
Aug 25, 2020·Investigative Ophthalmology & Visual Science·Linjiang Lou, Lisa A Ostrin
Dec 20, 2018·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Scott A ReadDavid Alonso-Caneiro
Feb 6, 2020·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Mei ZhaoAndrew K C Lam
Aug 13, 2021·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Safal KhanalTimothy J Gawne

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