[Impact of age-related cataract on regulation of circadian rhythm in elderly]
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Updated: Mar 22, 2026

Transmission Electron Microscopy as the Visualization Technique for Analysis of Circadian Synaptic Plasticity in the Mouse Barrel Cortex
Published on: August 19, 2025
1Department of Ophthalmology, Peking University Third Hospital, Beijing 100191, China.
Abstract:
This review presented an introduction of the visual pathway related circadian rhythm regulation system: the intrinsically photosensitive retinal ganglion cells-suprachiasmatic nucleus-pineal gland-melatonin axis, and discussed the impact of light with different wave length and irradiation received by retina on circadian rhythm and sleep habit. A hypothesis was proposed consequently that the high morbidity of sleep disorder in elderly might be partially attributable to the long-term blue light blocking status induced by age-related cataract. A number of relative literatures were reviewed and a novel research direction was advanced on improving circadian rhythm and sleep condition in elderly based on the current knowledge. (Chin J Ophthalmol, 2016, 52: 309-314).
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