Rodent Eyeball
Rodent Eyeball - Related Videos
01:20
Anatomy of the Eyeball
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2024
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
09:42
A Chronic Autoimmune Dry Eye Rat Model with Increase in Effector Memory T Cells in Eyeball Tissue
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Cited by 10 •
2017
This report describes a method to induce chronic experimental autoimmune dry eye in Lewis rats through immunization with an emulsion of rat lacrimal gland extract, ovalbumin, and complete Freund's adjuvant, followed by the injection of lacrimal gland extract and ovalbumin into the forniceal subconjunctiva and lacrimal glands six weeks later.
14:12
Rodent Identification II
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2015
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN Animal records must be accurately maintained to ensure that data collection is correct. Records range from maintaining information on cage cards to having a detailed database with all of the relevant information on each animal. The primary component of recordkeeping is the individual identification of research animals. There are a variety of methods suitable for identifying mice and rats. This...
12:13
Considerations for Rodent Surgery
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN The Guide for the Care and Use of Laboratory Animals1 dictates that rodent survival surgery be performed aseptically. Aseptic technique utilizes specific practices that minimize the contamination of the surgical site, including patient preparation, surgeon preparation, sterilization of instruments and other supplies, and the use of a clean and controlled environment. Presurgical planning,...
01:34
Environmental Enrichment for Rodents
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Environmental enrichment involves objects and practices that encourage natural behaviors, improve psychological well-being, and promote better welfare in laboratory rodents. Environmental enrichment should be tailored to the...
FAQs
The cornea and lens first focus incoming light onto the retina. Retinal photoreceptors then convert that light into neural signals, which are processed through retinal circuits before traveling along the optic nerve to the brain. This sequence allows investigators to connect structural changes in individual ocular regions with altered visual signaling and disease-related effects.
Rodent eyes share key anatomical and physiological features with human eyes, making them useful experimental models in medicine. Researchers can examine how retinal degeneration, inflammation, glaucoma, or ocular toxicity affect ocular structure and function in a controlled system. Findings from these studies can also support evaluation of experimental treatments before clinical studies.
The model supports investigation of several clinically important processes, including retinal degeneration, inflammation, glaucoma, ocular toxicity, and drug delivery. These areas involve different research questions, from understanding disease-related changes to determining how an intervention reaches or affects ocular tissues. Using one laboratory model across these applications helps compare structural, functional, and treatment-related outcomes.
These approaches provide complementary information. Imaging can document ocular features in the living or examined eye, while histology evaluates tissue structure at the microscopic level. Functional vision assays address how well visual processing operates. Together, they help researchers relate anatomical findings to visual performance and assess whether experimental disease or treatment changes produce measurable effects.
Researchers can use the eye model to examine responses to experimental treatments and to investigate drug delivery within an ocular research setting. Structural assessments, tissue analysis, and functional vision measurements provide evidence of treatment-associated effects. This combination helps determine whether an intervention influences disease-related changes or visual function before the approach proceeds to clinical studies.
Rodent eye studies provide a preclinical setting for examining ocular disease mechanisms, toxicity, delivery approaches, and treatment responses. Investigators can combine anatomical and functional assessments to gather evidence about an intervention’s effects in a model that shares important features with human eyes. The resulting information helps inform decisions about approaches that may warrant later clinical investigation.