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Hummingbirds use compensatory eye movements to stabilize both rotational and translational visual motion.
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Department of Zoology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.
To maintain stable vision, behaving animals make compensatory eye movements in response to image slip, a reflex known as the optokinetic response (OKR). Although OKR has been studied in several avian species, eye movements during flight are expected to be minimal. This is because vertebrates with laterally placed eyes typically show weak OKR to nasal-to-temporal motion (NT), which simulates typical forward locomotion, compared with temporal-to-nasal motion (TN), which simulates atypical backward locomotion.
View Article and Find Full Text PDFGlipizide inhibits the glycation of alpha-crystallin: A combined in vitro and in silico approach in retinopathy management.
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Department of Refraction, Baoji Aier Eye Hospital, Bao'ji, 721000, China. Electronic address:
In human eye, structural proteins, known as crystallins, play a crucial role in maintaining the eye's refractive index. These crystallins constitute majority of the total soluble proteins found in the eye lens. Among them, α-crystallins (α-CR) is one of the major components.
View Article and Find Full Text PDFNovel full-thickness biomimetic corneal model for studying pathogenesis and treatment of diabetic keratopathy.
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Aier Academy of Ophthalmology, Central South University, Changsha, Hunan, China.
Diabetic keratopathy (DK), a significant complication of diabetes, often leads to corneal damage and vision impairment. Effective models are essential for studying DK pathogenesis and evaluating potential therapeutic interventions. This study developed a novel biomimetic full-thickness corneal model for the first time, incorporating corneal epithelial cells, stromal cells, endothelial cells, and nerves to simulate DK conditions .
View Article and Find Full Text PDFCognitive Trajectory Before and After Cataract Surgery: A Population-Based Approach.
J Am Geriatr Soc
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Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, California, USA.
Background: Cataract surgery is the most common surgical procedure performed for older US adults. Cataracts are associated with poor cognition and higher rates of dementia, but whether cataract surgery improves cognition for US older adults is not known. We examined the relationship between cataract surgery and long-term change in cognition in the Health and Retirement Study, a population-based study of older US adults linked with Medicare billing data.
View Article and Find Full Text PDFA Comparative Analysis of the Effects of Misaligning Different Trifocal Intraocular Lenses.
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The David J Apple Center for Vision Research, Department of Ophthalmology, Heidelberg University Eye Clinic, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
This laboratory study aims to assess the effects of misaligning different trifocal intraocular lenses (IOLs) under varying spectral and corneal spherical aberration (SA) conditions. With an IOL metrology device under monochromatic and polychromatic conditions, the following models were studied: AT ELANA 841P, AT LISA Tri 839MP, FineVision HP POD F, Acrysof IQ PanOptix, and Tecnis Synergy ZFR00V. The SA was simulated using an aberration-free and average-SA cornea.
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