WebJan 31, 2024 · Optical pachymetry: Optical pachymeters are mounted on a biomicroscope mostly used by ophthalmologists called slit lamps. The optical pachymeter does not come in contact with the cornea, unlike the ultrasound pachymeters that need to come in contact with cornea before the measurement is taken. WebBoth Orbscan and Visante OCT underestimated central corneal thickness compared to ultrasound pachymetry 6 months after LASIK, although measurements obtained with Visante OCT had better agreement and correlation …
Central corneal thickness measurements by ultrasound, Orbscan ... - PubMed
WebMar 1, 2004 · Interestingly, the new CPT code for pachymetry, 76514, is defined as an ultrasound procedure. A number of devices currently on the market measure corneal thickness optically -- but these devices do not meet the definition of 76514. For optical pachymetry, use 92499, unlisted ophthalmological service or procedure. WebCorneal Pachymetry is the measurement of corneal thickness and commonly uses either ultrasonic or optical methods. Measurement of corneal thickness in individuals … ordering swabs for care homes
Pachymetry Test for Corneal Thickness - Verywell Health
WebSep 6, 2024 · There are two types of techniques used to determine corneal thickness: ultrasound and optical. Ultrasound Pachymetry. As the name suggests, this procedure uses ultrasonic pachymeters to measure the central corneal thickness (CCT). It's considered … WebOptical pachymetry is the newer type. It allows the optometrist to measure the cornea microscopically to determine the thickness. It does not require the instrument to come in contact with the cornea itself. However, the downside of optical pachymetry is that insurance companies may not pay for it. WebThis technology could be valuable for planning keratorefractive procedures and diagnosis of corneal diseases. High-speed OCT provided noncontact, rapid, reproducible pachymetric … irff9123