We read with great interest the article by Aghazadeh Amiri et al. concerning the corneal thickness (CT) measurements with Scheimpflug and slit scanning imaging techniques in keratoconus (KC). We would like to congratulate with the authors for their very interesting paper because it is well known that the measurement of CT is involved in the reliability of intraocular pressure measurements, both...

PURPOSE To report a novel method for pachymetry mapping of human precorneal tear film using Pentacam. METHODS Precorneal tear film is routinely undetected by Pentacam but could be well visualized with the aid of fluorescein. Twenty patients with dry eye and 20 age-matched control subjects with normal eyes were enrolled in this prospective study. The right eye of each subject was scanned once ...

PURPOSE To determine the interaction between corneal topographic and tomographic parameters and dry eye syndrome (DES) in keratoconus (KC) patients. METHODS Seventy-seven eyes of 49 patients with KC (age 34.4 ± 11.6 years) were enrolled in this study. In these 77 eyes we recorded surface regularity index (SRI), surface asymmetry index (SAI) and Klyce/Maeda KC index (KCI) using the Topographic...

Background: The toric IPCL is posterior phakic intraocular lens used for correction of moderate to high myopia with astigmatism, but after the implantation, there were changes in parameters anterior chamber (AC). Purpose: purpose this study assess AC and vault patients astigmatism by Pentacam. Patients Methods: In a prospective interventional case series, 30 eyes treated implantation. Pentacam ...

The Pentacam’s new densitometry software is not without limitations. A poorly dilated pupil interferes with the device’s sampling technology, and so eyes with pseudoexfoliation, trauma, and intraoperative floppy iris syndrome, for example, are problematic. Also, white cataracts block the system’s ability to sample the central nucleus. Nevertheless, comparison studies with the LOCS III system ha...

Abstract Objective To more comprehensively evaluate the ability of parameters reflecting morphological and biomechanical properties cornea to distinguish clinical keratoconus (CKC) forme fruste (FFKC) from normal. Methods Normal eyes ( n = 50), CKC 45) FFKC 15) were analyzed using Pentacam, Corvis ST ORA. Stepwise logistic regression all was performed obtain optimal combination model capable di...

PURPOSE To comprehensively assess the precision and agreement of anterior corneal power measurements using 8 different devices. METHODS Thirty-five eyes from 35 healthy subjects were included in the prospective study. In the first session, a single examiner performed on each subject randomly measurements with the RC-5000 (Tomey Corp., Japan), KR-8000 (Topcon, Japan), IOLMaster (Carl Zeiss Med...

BACKGROUND Efficacy and high availability of surgery techniques for refractive defect correction increase the number of patients who undergo to this type of surgery. Regardless of that, with increasing age, more and more patients must undergo cataract surgery. Accurate evaluation of corneal power is an extremely important element affecting the precision of intraocular lens (IOL) power calculati...

PURPOSE To calculate actual corneal astigmatism using the total corneal refractive astigmatism for the 4-mm apex zone of the Pentacam (TCRP4astig) and keratometric astigmatism (Kastig) before and after photorefractive keratectomy or laser in situ keratomileusis. METHODS Uncomplicated 56 eyes after more than 6 months from the surgery were recruited by chart review. Various corneal astigmatisms...