Comparability analysis of the HNT-1P Huvitz non contact tonometer for the measurement of intraocular pressure.

Purpose: To evaluate the diagnostic validity of the HNT-1P non-contact tonometer (Huvitz) as a tool for accurately measuring intraocular pressure (IOP) in patients with healthy eyes, compared to the Goldmann applanation tonometer (GAT), which is the Gold Standard method for measurement of IOP.

Methods: Observational, descriptive, transversal study using 148 eyes of 74 healthy patients without a diagnosis of glaucoma or other ophthalmological diseases. Three measurements of IOP were taken in each eye, using three tonometers: HNT-1P, ICR100, and GAT.

Reverse 4-Flanged Technique for Intrascleral Fixation of a Foldable Hydrophobic Intraocular Lens in the Absence of Capsular Support Through a 2.2-mm Corneal Incision.

Purpose: The purpose of this study was to describe a modified technique for sutureless intrascleral intraocular lens fixation in patients without capsular support: the reverse 4-flanged technique.

Methods: A 2.2-mm corneal incision was made for aphakic patients.

Evaluation of 9 IOL power calculation formulas using a heteroscedastic statistical method and a new method of IOL constant optimization.

Purpose: To evaluate the prediction accuracy of 9 IOL power calculation formulas using a heteroscedastic statistical analysis and a novel method for IOL constant optimization.

Design: Retrospective case series.

Methods: The LenStar LS900 (Haag-Streit, Koeniz, Switzerland) was used for the preoperative biometry.

Intraobserver Repeatability of Tomographic, Pachymetric, and Anatomical Measurements in Healthy Eyes Using a New Swept-Source Optical Coherence Topographer.

Purpose: The purpose of this study was to evaluate the intraobserver repeatability of several corneal parameters in healthy eyes using a new swept-source optical coherence topographer.

Methods: Fifty right eyes of 50 subjects were enrolled in this study. A single examiner performed 3 consecutive measurements using the Anterion swept-source optical coherence tomography.