Anterior chamber depth measurement before and after photorefractive keratectomy: comparison between IOL master and Orbscan II

Ophthalmology
Nicola RosaAntonio Romano

Abstract

To measure the anterior chamber depth (ACD) with 2 different devices before and after photorefractive keratectomy (PRK). Noncomparative case series. One hundred forty-three eyes of 143 patients who had undergone PRK with refractive errors ranging from -13.13 diopters (D) to +7 D (mean, -3.67+/-3.58) were analyzed. The ACD values preoperatively and at 1, 3, and 6 months postoperatively were measured with the Orbscan II and IOL Master. The results were analyzed using the Pearson correlation. Anterior chamber depth. The instruments showed good agreement between the measurements before and after surgery. A significant decrease between the preoperative and 1-month postoperative measurements was found in the ACD measured from the epithelium with Orbscan II (P<0.01) and IOL Master (P<0.01). A nonsignificant decrease with both IOL Master (P>0.01) and Orbscan II (P>0.01) was found between 3 and 6 months after surgery. The ACD measured from the endothelium using the Orbscan II showed a significant difference only between the 3- and 6-month follow-up data (P<0.01). The 2 devices showed good agreement, and the changes detected postoperatively seem to be related not only to corneal thinning but also to anterior segment remodeling.

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Citations

Sep 1, 2006·Photomedicine and Laser Surgery
Dec 4, 2008·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Po-Fang SuShu-Wen Chang
May 28, 2009·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Hassan HashemiAkbar Fotouhi
Nov 19, 2013·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Nicola RosaMichela Cennamo
Feb 13, 2016·Journal of Biophotonics·Michele LanzaMario Bifani
Mar 20, 2015·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Alberto Domínguez-VicentRobert Montés-Micó
Feb 11, 2014·Seminars in Ophthalmology·Nicola RosaMichele Lanza
Feb 22, 2011·Journal of Cataract and Refractive Surgery·Ian DooleyStephen Beatty
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Jun 25, 2015·Journal of Optometry·Maddalena De BernardoNicola Rosa
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Aug 26, 2020·Photodiagnosis and Photodynamic Therapy·Maddalena De BernardoNicola Rosa
Feb 14, 2008·Journal of Refractive Surgery·Maria Borrelli, Carlo Irregolare

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