[QUANTIFICATION OF CONJUNCTIVAL HYPEREMIA IN RABBITS USING ANALYSIS SOFTWARE].
Yoko Mitsuguchi1, Tsuyoshi Yoneda2, Takahiro Kurose1
1Rohto Pharmaceutical Co.,LTD.
Arerugi = [Allergy]
|February 18, 2021
Summary
Image analysis offers a quantitative method for assessing conjunctival hyperemia in rabbits, overcoming limitations of visual grading. This approach provides reproducible and numerical data for evaluating ocular inflammation.
Area of Science:
- Ophthalmology
- Veterinary Medicine
- Medical Imaging
Background:
- Visual grading of conjunctival hyperemia in rabbits lacks reproducibility and quantitative value.
- Current methods struggle with consecutive measurements of vasodilation.
- Objective assessment is needed for reliable conjunctival hyperemia evaluation.
Purpose of the Study:
- To quantify conjunctival hyperemia in rabbits using image analysis.
- To compare image analysis-derived vascular area percentage with visual hyperemia scores.
- To establish a more objective method for assessing conjunctival vasodilation.
Main Methods:
- Conjunctival images were captured using a digital medical scope before and after arachidonic acid instillation.
- Hyperemia analysis software calculated the vascular area ratio.
- Visual hyperemia scores were assigned and compared with the calculated vascular area ratio.
Main Results:
- Arachidonic acid significantly increased conjunctival blood vessel area ratio.
- The vascular area ratio showed a time-dependent decrease after initial increase.
- The quantitative vascular area ratio correlated well with the visual hyperemia score.
Conclusions:
- Numerical and quantitative evaluation of conjunctival hyperemia in rabbits is feasible.
- Image analysis provides a reliable method for assessing conjunctival hyperemia.
- This quantitative approach is valuable for research on allergic conjunctival diseases.
