Results 71 to 80 of about 7,330 (214)

Measuring corneal haze by using Scheimpflug photography and confocal microscopy [PDF]

, 2016
Purpose: We compared corneal backscatter estimated from a Scheimpflug camera with backscatter estimated from a clinical confocal microscope across a wide range of corneal haze.Methods: A total of 59 corneas from 35 patients with a range of severity of ...
Wacker, Katrin, McLaren, Jay W., Kane, Katrina M., Patel, Sanjay V.   +3 more
core   +1 more source

Comparison of biomicroscopic fluorescein tear breakup time with noninvasive tear breakup time in diabetic patients with dry eyes

The Pan-American Journal of Ophthalmology
Objectives: This study aimed to compare biomicroscopic fluorescein tear breakup time (TBUT) with noninvasive tear breakup time (NI-TBUT) using Sirius topography in diabetic patients with dry eyes.
Mayank Jhanwar, Sumit Goyal, Saurabh Kushwaha, Mohini Agrawal, V. K. B. Muthu Kamal, Arpit Srivastava   +5 more
doaj   +1 more source

Reconstruction of deep and perforating corneal defects in dogs—A review (Part II/III): Biomaterials and keratoprosthesis

Veterinary Ophthalmology, Volume 28, Issue 2, Page 532-542, March 2025.
Abstract The surgical reconstruction of severe corneal ulcers is a common and crucial component of the clinical practice of veterinary ophthalmology. Numerous surgical techniques are used in dogs for corneal reconstruction, and these techniques may be categorized by the material used to repair the corneal lesion.
Eric C. Ledbetter, Rick F. Sanchez, Marta Leiva Repiso   +2 more
wiley   +1 more source

Comparison of Dysfunctional Lens Index and Scheimpflug Lens Densitometry in the Evaluation of Age-Related Nuclear Cataracts [PDF]

To describe the Dysfunctional Lens Index (DLI) from ray-tracing aberrometry and to test its correlations with logMAR corrected distance visual acuity (CDVA) and lens grading based on the Lens Opacities Classification System III (LOCS III) and the ...
Bernardo Lopes, Franqueira, Nuno, Tiago Monteiro, Nuno Franqueira, Ramos, Isaac, Lopes, Bernardo, Faria-Correia, Fernando, Renato Ambrósio, Isaac Ramos, Ambrósio Junior, Renato [UNIFESP], Ambrósio Jr., Renato, Fernando Faria-Correia, Monteiro, Tiago   +12 more
core   +1 more source

Geometric model of image formation in Scheimpflug cameras [PDF]

, 2016
We present a geometric model of image formation in Scheimpflug cameras that is most general. Scheimpflug imaging is commonly used is scientific and medical imaging either to increase the depth of field of the imager or to focus on tilted object surfaces.
Prasanna Rangarajan, Marc P. Christensen, Indranil Sinharoy   +2 more
core   +1 more source

Scheimpflug imaging for evaluation of intraocular lens position in modified flanged scleral fixated intraocular lens

Therapeutic Advances in Ophthalmology, 2023
Background: Scleral fixation of intraocular lens (IOLs) is the most preferred technique for the management of aphakia and the techniques have evolved over the years.
Avadhesh Oli, Anil Yadav, J. Ganesh Babu, Divya Balakrishnan   +3 more
doaj   +1 more source

Immediate Postoperative Decentration of a Biologic Corneal Inlay Managed With Tomography‐Guided Repositioning: A Case Report

Clinical Case Reports, Volume 14, Issue 3, March 2026.
Immediate postoperative Pentacam corneal tomography revealing inferior‐temporal decentration of the biologic corneal inlay on the axial curvature map. ABSTRACT Biologic corneal inlays can rarely present with immediate postoperative decentration, which can be subtle and difficult to detect clinically. Real‐time tomography allows precise early diagnosis,
Giacomo Beschi, Guillermo Rocha
wiley   +1 more source

Automatic Quantitative Assessment of Lens Opacities Using Two Anterior Segment Imaging Techniques: Correlation with Functional and Surgical Metrics

Diagnostics, 2022
The purpose of this study is to quantitatively assess lens opacity, using a swept-source optical coherence tomography (SS-OCT) device for anterior segment assessment, and establish the correlation with Scheimpflug imaging, corrected distance visual ...
Lars H. B. Mackenbrock, Grzegorz Łabuz, Timur M. Yildirim, Gerd U. Auffarth, Ramin Khoramnia   +4 more
doaj   +1 more source

A review of angle kappa and multifocal intraocular lenses and their effect on visual outcomes

Acta Ophthalmologica, Volume 104, Issue 2, Page e122-e138, March 2026.
Abstract Although most patients are satisfied with their vision after multifocal intraocular lens (IOL) implantation, dissatisfaction has been reported for various reasons, including poor visual outcomes and visual disturbances. Many published reports hypothesise that preoperative angle kappa may be an associated factor in patient dissatisfaction ...
Thomas Kohnen, Viswanathan Ramasubramanian, Rajaraman Suryakumar   +2 more
wiley   +1 more source

Predictive Correction Model for Corneal Back Surface Astigmatism With IOLMaster700 Keratometry Data in a Cataractous Population

Clinical &Experimental Ophthalmology, Volume 54, Issue 1, Page 21-32, January/February 2026.
ABSTRACT Background To develop and validate various models to predict total keratometry (TK) power vector components TKC0 and TKC45 from classical keratometry (K) KC0 and KC45 based on a large dataset of pre cataract surgery IOLMaster 700 measurements.
Achim Langenbucher, Peter Hoffmann, Alan Cayless, Nóra Szentmáry, Kamran Riaz, Damien Gatinel, Oliver Findl, Seth Pantanelli, Tun Kuan Yeo, Giacomo Savini, Jascha Wendelstein   +10 more
wiley   +1 more source