Interchangeability among five devices that measure anterior eye distances

Clinical & Experimental Optometry : Journal of the Australian Optometrical Association
Alberto Domínguez-VicentRobert Montés-Micó

Abstract

The aim was to study the interchangeability of various devices that measure anterior chamber depth (ACD) and white-to-white (WTW) distance. Eighty right eyes of eighty patients aged 20 to 40 years were included. Their spherical equivalent ranged from -4.25 to +1.00 dioptres. Each eye's ACD and the WTW distance were measured using the following devices: a Castroviejo surgical calliper, CA-200F Corneal Analyser, Orbscan II, Pentacam HR and IOLMaster 500. The Pentacam HR measured significantly greater ACD (p < 0.01) than the other two devices, whereas IOLMaster 500 and Orbscan II yielded comparable (p > 0.01) distances. Nonetheless, in every device comparison, the mean difference was within clinically acceptable limits. The device comparison showed that for WTW distance measurements IOLMaster 500 yields the greatest value (p < 0.01), whereas CA-200F Corneal Analyser yields the smallest one (p < 0.01). Pentacam HR, Orbscan II and IOLMaster 500 can be used interchangeably to measure ACD, whereas Orbscan II, IOLMaster 500, Castroviejo surgical calliper and CA-200F Corneal Analyser cannot be considered interchangeable, when it comes to measuring WTW distance.

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Citations

Nov 9, 2016·Journal of Refractive Surgery·Alberto Domínguez-VicentRune Brautaset
May 29, 2018·Expert Review of Medical Devices·Teresa Ferrer-BlascoRobert Montés-Micó
Jan 29, 2020·Cornea·Hesham Mohamed GhariebRania Serag Elkitkat
Mar 6, 2019·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Sehnaz Ozcaliskan, Nursal Melda Yenerel
Aug 30, 2020·International Ophthalmology·Pedro Tañá-RiveroRamón Ruiz-Mesa

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