Age-Related Macular Degeneration and Circadian Preference.

Clinical ophthalmology (Auckland, N.Z.) Pub Date : 2025-03-13 eCollection Date: 2025-01-01 DOI:10.2147/OPTH.S487389

Estefany Garces, Katarzyna Slota, Michael W Stewart, Maria P Guzman, Natalia M Werninck, Pablo R Castillo

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Abstract

Purpose: Age-related macular degeneration (AMD) is the leading cause of blindness in developed nations. Within the retina, a subset of cells, called melanopsin-containing intrinsically photosensitive retinal ganglion cells, are implicated in circadian rhythms, prompting a search for a potential connection between circadian behavior and AMD. Our objective was to compare the chronotype (ie, preference for morning or evening activity) of individuals with AMD to that of those without ocular conditions.

Patients and methods: The Horne-Östberg Morningness-Eveningness questionnaire was administered to previously screened patients with wet AMD who received bilateral anti-vascular endothelial growth factor eye injections (study participants) as well as those without eye pathology (controls). Thirty-one study participants and 19 controls completed the survey and were included in the analysis. We used Wilcoxon rank sum test and Fisher exact test for continuous and categorical variables respectively.

Results: Study participants had a higher median age compared to controls (83 vs 75, P<0.001). No significant difference in body mass index was observed between respondents. While the disparity in survey responses between study participants and controls was generally not statistically significant, more study participants struggled with attending exercises between 7:00 and 8:00 in the morning compared to controls (45% vs 21%, P=0.02). Additionally, fewer study participants expressed the need to sleep before 10:15 pm compared to controls (55% vs 63%, P=0.04). Study participants tended to have a delayed sleep-wake cycle.

Conclusion: In this pilot study, study participants encountered greater challenges with morning exercise compared to controls. Nonetheless, there was no significant difference in chronotype between study participants and controls. The study could serve as a foundation for more extensive research exploring the interplay between vision loss and circadian rhythms.

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