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This review examines the pivotal role of photoreceptor cells in ocular refraction development, focusing on dopamine (DA) as a key neurotransmitter. Contrary to the earlier view favoring cone cells, recent studies have highlighted the substantial contributions of both rod and cone cells to the visual signaling pathways that influence ocular refractive development. Notably, rod cells appeared to play a central role. Photoreceptor cells interact intricately with circadian rhythms, color vision pathways, and other neurotransmitters, all of which are crucial for the complex mechanisms driving the development of myopia. This review emphasizes that ocular refractive development results from a coordinated interplay between diverse cell types, signaling pathways, and neurotransmitters. This perspective has significant implications for unraveling the complex mechanisms underlying myopia and aiding in the development of more effective prevention and treatment strategies.
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http://dx.doi.org/10.1016/j.exer.2024.109976 | DOI Listing |
Clin Exp Optom
September 2025
School of Optometry and Vision Science, University of New South Wales, Sydney, Australia.
Clinical Relevance: Good vision is critical for childhood development and education. Pre-school vision screening is important for early detection and treatment of visual problems, and prevention of life-long vision loss.
Background: The aim of this study was to determine the prevalence of vision impairment (VI) and refractive error (RE) in rural Nepalese children under five years of age.
Zhonghua Yan Ke Za Zhi
September 2025
Beijing Tongren Eye Center, Beijing Institute of Ophthalmology, Beijing Ophthalmology&Visual Sciences Key Lab, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
Pathological myopia is one of the primary causes of irreversible visual loss in the population. Myopic maculopathy represents a key feature of pathological myopia, among which macular atrophy is the main contributor to severe visual impairment. The specific mechanism underlying the development of macular atrophy remains unclear.
View Article and Find Full Text PDFAm J Ophthalmol
September 2025
Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Duke-NUS Graduate Medical School, Singapore; Department of Ophthalmology, Emory University School of Medicine, Emory University; Department of Biomedical Engineering, Georgia Institute of Technology/Emory University, Atlanta
Purpose: To characterize the 3D structural phenotypes of the optic nerve head (ONH) in patients with glaucoma, high myopia, and concurrent high myopia and glaucoma, and to evaluate their variations across these conditions.
Design: Retrospective cross-sectional study.
Participants: A total of 685 optical coherence tomography (OCT) scans from 754 subjects of Singapore-Chinese ethnicity, including 256 healthy (H), 94 highly myopic (HM), 227 glaucomatous (G), and 108 highly myopic with glaucoma (HMG) cases METHODS: We segmented the retinal and connective tissue layers from OCT volumes and their boundary edges were converted into 3D point clouds.
Vestn Oftalmol
September 2025
Northern State Medical University, Arkhangelsk, Russia.
Unlabelled: The diagnostic potential of computer accommodography remains insufficiently studied. At the same time, accommodative and refractive disorders are extremely common today among the youth.
Objective: This study investigated objective accommodative parameters using computer accommodography in samples of individuals aged 17-19 and 20-23 years with and without a diagnosis of myopia.
Transl Vis Sci Technol
September 2025
State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, People's Republic of China.
Purpose: The purpose of this study was to estimate the correlations between macular optical coherence tomography (OCT)-derived metrics and incident glaucoma risk in myopic eyes.
Methods: This longitudinal observational study included 24,181 individuals with myopia (spherical equivalence [SE] ≤ -0.5 diopters [D]) from the UK Biobank study.