Intra and inter‐user reliability of central corneal thickness measurements obtained in healthy feline eyes using a portable spectral‐domain optical coherence tomography device

Abstract

The Optovue® iVue SD-OCT device is capable of obtaining CCT measurements with excellent intra and interoperator reliability in healthy feline eyes.

In vivoevaluation of the cornea and conjunctiva of the normal laboratory beagle using time‐ and Fourier‐domain optical coherence tomography and ultrasound pachymetry

“…Fourier‐domain OCT (FD‐OCT) has also been used for diagnosing and monitoring other anterior segment conditions such as conjunctivochalasis and been used for assessing the tear meniscus of humans . In veterinary ophthalmology, OCT has been primarily used in canine retinal and glaucoma research and there are currently limited data available on OCT values of the canine anterior segment . Studies have found SD‐OCT to be a reliable tool for measuring CCT in dogs …”

“…In veterinary ophthalmology, OCT has been primarily used in canine retinal and glaucoma research and there are currently limited data available on OCT values of the canine anterior segment . Studies have found SD‐OCT to be a reliable tool for measuring CCT in dogs …”

“…Several studies in humans have demonstrated good correlation between corneal thickness measurements obtained by USP and OCT pachymetry . To date, there are only a few publications on USP and OCT corneal pachymetry in dogs . The aims of this study were to obtain images of the cornea using FD‐OCT and TD‐OCT and conjunctiva using FD‐OCT of healthy laboratory beagles and to compare corneal FD‐OCT pachymetry and USP in 3 different locations (superior perilimbal, superior paraxial, and central cornea).…”

Spectral‐domain optical coherence tomography evaluation of the cornea, retina, and optic nerve in normal horses

“…In the veterinary ophthalmic literature, the use of OCT was first reported in 2007 in a study evaluating retinal structure in the cat and in 2008 to describe the retinopathy of the Coton de Tulear dogs . Recently, several studies have used OCT to characterize the normal cornea, iridocorneal angle, and retina in several species, as well as corneal abnormalities in dogs and cats . In the majority of these studies, the animals were under general anesthesia or deep sedation to avoid eye movement during imaging …”

Intraoperative Pachymetry Using Spectral-Domain Optical Coherence Tomography during Accelerated Corneal Collagen Crosslinking

“…It is noteworthy that the conventional “upright-sitting” counterpart (RTVue, Optovue Inc., Fremont, CA, USA) of iVUE SDOCT is a well-known device with excellent repeatability and reproducibility in measuring CCT [16–20], though measurements cannot be used interchangeably with those made by USP [18–20]. Another recent study in feline eyes has also shown that the iVUE SDOCT is capable of obtaining CCT measurements with excellent intra- and interoperator reliability [27]. Further studies will be needed to establish the accuracy of SDOCT pachymetric measurements with clinicopathological evaluations of the cornea and to study the safety and efficacy of performing CXL in corneas of the thicknesses as measured by SDOCT.…”