Cataract Assessment
Cataract Assessment - Related Videos
13:56
Characterization of Molecular Mechanisms of In vivo UVR Induced Cataract
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Cited by 4 •
2012
Cataract is the leading cause of blindness in the world. Solar ultraviolet radiation (UVR) is the main risk factor for cataract development. An animal model of far UVR-B induced cataract was developed. In this article we describe methods for investigation of cataract formation: exposure to UVR, quantitative RT-PCR and immunohistochemistry.
05:19
Modeling Cataract Surgery in Mice
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Cited by 3 •
2023
This method models cataract surgery in vivo by removing lens fiber cells from adult mice and leaving behind the capsular bag with attached lens epithelial cells (LECs). The injury response is then assessed at various times post-surgery using molecular and morphological criteria.
07:53
Establishment of a Clinically Relevant Ex Vivo Mock Cataract Surgery Model for Investigating Epithelial Wound Repair in a Native Microenvironment
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Cited by 13 •
2015
Described here is the establishment of a clinically relevant ex vivo mock cataract surgery model that can be used to investigate mechanisms of the injury response of epithelial tissues within their native microenvironment.
06:58
Frailty Assessment in an Aging Mouse Model
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2025
The goal of the present protocol is to provide instructions and guidelines for assessing physical frailty in C57Bl/6x129J laboratory mice. Specific details regarding each measure used in the physical frailty index are explained. Several methods for reporting frailty results are also presented.
04:59
Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries
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Cited by 1 •
2023
The present protocol describes removing residual epithelial cells by rotating the intraocular lens in extracapsular cataract surgery without extra tools for preventing posterior capsular opacification.
FAQs
Visual acuity quantifies how clearly a person sees, whereas slit-lamp biomicroscopy directly magnifies the anterior eye for visible lens opacities. The two observations therefore complement one another: a change in measured vision can be considered alongside structural evidence in the lens. This combined interpretation helps characterize cataract-related impairment rather than relying on either function or appearance alone.
Dilation enlarges the pupil, allowing a more complete view of the lens and retina during examination. This matters because assessment is not limited to reported blur or glare; the examiner also needs better access to ocular structures when inspecting them. In practice, dilation can improve the structural information available for judging lens changes and overall ocular health.
Blurred vision and glare are useful clinical clues, but they do not by themselves establish how lens changes relate to visual impairment. Comparing these symptoms with visual acuity, lens appearance, and other ocular findings provides a more balanced picture. This comparison supports decisions about whether the condition appears sufficiently consequential for treatment or whether continued monitoring is appropriate.
A practical sequence begins with visual acuity testing, followed by slit-lamp biomicroscopy to inspect the anterior eye and lens. If a broader view is needed, dilation can improve examination of the lens and retina. The findings are then compared with symptoms and other observations of ocular health, producing a structured record for care decisions or follow-up.
Treatment and monitoring decisions depend on the relationship between symptoms, visual performance, lens appearance, and ocular health. Cataract assessment is therefore useful when clinicians need to determine whether observed changes are affecting vision enough to justify treatment or whether the findings can be followed over time. The assessment supplies a consistent basis for that judgment.
In biology, cataract assessment provides a standardized way to examine how ocular tissues change in association with aging, injury, disease, or metabolic changes. Such assessments can relate visual function and lens transparency to these influences. The approach consequently connects observable eye findings with broader questions about tissue change, disease effects, and variation in ocular health.