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Canine corneal thickness measured by ultrasonic pachymetry
B C Gilger1, R D Whitley, S A McLaughlin
1Department of Small Animal Surgery, College of Veterinary Medicine Auburn University, AL 36849-5523.
American Journal of Veterinary Research
|October 1, 1991
Summary
This study found that the peripheral cornea in dogs is thicker than the central cornea, with thickness varying by age, weight, and sex. These corneal thickness variations are important for veterinary ophthalmology.
Area of Science:
- Veterinary Ophthalmology
- Ocular Biometry
Background:
- Corneal thickness is a critical parameter in ocular health and disease.
- Variations in corneal thickness can influence intraocular pressure measurements and disease diagnosis.
- Understanding canine corneal morphometrics is essential for accurate ophthalmic assessments.
Purpose of the Study:
- To measure central and peripheral corneal thicknesses in dogs using ultrasonic pachymetry.
- To investigate the influence of age, weight, and sex on canine corneal thickness.
- To determine age-related changes in corneal thickness and peripheral-central differences.
Main Methods:
- Ultrasonic pachymetry was employed to measure corneal thickness.
- Measurements were taken at central, superior peripheral, and temporal peripheral locations.
- Data from 75 healthy dogs (150 eyes) were analyzed, considering age, weight, and sex.
Main Results:
- Mean corneal thickness was 562 +/- 6.2 microns.
- The peripheral cornea was significantly thicker than the central cornea (49.43 +/- 8.45 microns).
- Corneal thickness increased with age and weight, and females had thinner corneas than males.
Conclusions:
- Canine corneal thickness exhibits significant variation based on location, age, weight, and sex.
- Peripheral corneal thickening increases with age.
- These findings provide valuable normative data for canine corneal morphometry in veterinary ophthalmology.