Reference Ranges of Intraocular Pressure, Central Corneal Thickness, and Ocular Surface Temperature in Van Cats.

Van Cat-specific ocular reference ranges established: IOP 24.8 mmHg, CCT 649.1 μm, OST 36.25°C.

This study establishes breed-specific reference ranges for ocular parameters in Van Cats, a purebred feline population. Researchers measured intraocular pressure (IOP), central corneal thickness (CCT), and ocular surface temperature (OST) in 307 healthy Van Cats without sedation using standardized techniques: rebound tonometry, pachymetry, and infrared thermography, respectively. Mean values were IOP 24.8 ± 6.8 mmHg, CCT 649.1 ± 62.2 μm, and OST 36.25°C ± 0.73°C. Strong bilateral symmetry was demonstrated with no significant interocular differences. Eye color influenced some parameters, with heterochromatic cats showing slightly elevated IOP and CCT compared to blue-eyed cats. Sex had minimal effects except in blue-eyed males. A weak positive correlation existed between IOP and CCT. These breed-specific reference ranges provide valuable clinical benchmarks for diagnosing ocular pathology and monitoring ocular health in Van Cats during routine examinations and research protocols.

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