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Sonogage Corneo Gage Plus Pachymeter Sonogage Corneo Gage Plus Pachymeter A multi-mode modular designed, up-gradable ultrasonic pachometer offering state-of-the-art high frequency technology to provide accurate reproducible corneal thickness measurements for keratorefractive surgery and other ophthalmic needs. Sonogage Corneo Gage Plus Pachymeter is the only ultrasonic pachymeter capable of measuring epithelial thickness. The unit employs a sleek design and can be configured as an economical pachometer or a full control station for RK, ALK, PRK, and LASIK procedures. Sonogage exclusively uses 50 MHz transducers in all Corneo-Gage Plus™ ultrasonic pachymeters. Sonogage is the world leader in pachymeter transducer design and is ahead of the competition in offering the latest in technology and precision engineering. Other pachymeter manufacturers only offer at best 20 MHz transducers, which limit accuracy, reproducibility and the ease of making measurements. 50 MHz transducers give you 2.5 times the resolution of other pachymeter transducers. This is the equivalent of giving you a ruler with 2.5 times the number of demarcations! In addition, 50 MHz gives you a smaller acoustic pulse width, which allows the unit to locate and measure corneal layers and interfaces where the speed of sound differs only slightly—because of this; one can more accurately locate the endothelium and measure accurately and easily stromal beds, lamella and epithelial thicknesses. Epithelium has up to 2 diopters of refractive error—in PRK and Lasik cases it is important to monitor epithelium re-growth and postoperative thickening to assure the desired results. In addition the measurement of epithelial thickness is essential to understand the fitting of corneal reshaping lenses, CRT and ORTHO-K. Sonogage Corneo-Gage Plus™ is the only ultrasonic pachymeter capable of measuring epithelial thickness.