Results 181 to 190 of about 9,851 (221)

Comparison of ultrasonic pachymetry with orbscan in corneal haze

Graefe's Archive for Clinical and Experimental Ophthalmology, 2007
To compare the results of ultrasonic and Orbscan pachymetry in corneal haze not related to surgery.An institutionally based, prospective, controlled clinical trial included 40 eyes of 40 consecutive patients with corneal haze not related to surgery. Fifty normal eyes were used as a control group to calculate the customized acoustic factor. Corneal haze
Rana, Altan-Yaycioglu, Aysel, Pelit, Yonca Aydin, Akova   +2 more
openaire   +2 more sources

[Corneal pachymetry and intraocular pressure].

Klinische Monatsblatter fur Augenheilkunde, 2005
Just recently studies on glaucoma have emphasised the significance of intraocular pressure in the diagnosis of glaucoma and the importance of intraocular pressure reduction in the management of glaucoma. Central corneal thickness appears to play an important role in the exact measurement of intraocular pressure and in the diagnostic assessment of ...
A, Hagerb, H, Dave, W, Wiegand
openaire   +1 more source

Validation of Confocal Microscopy Through Focusing for Corneal Sublayer Pachymetry

Cornea, 2002
To evaluate the accuracy and precision of confocal microscopy through focusing (CMTF) for corneal sublayer pachymetry.A tandem scanning confocal microscope equipped with a nonapplanating contact objective was used to perform CMTF. The accuracy of CMTF measurements was evaluated using nine custom-made calibration contact lenses (PMMA) with varying ...
Ivarsen, A., Stultiens, B.A., Møller-Pedersen, T.   +2 more
openaire   +3 more sources

Standard and Hypoosmolar Corneal Cross-linking in Various Pachymetry Groups

Optometry and Vision Science, 2015
To investigate the influence of corneal thickness on the outcome of corneal cross-linking (CXL) for progressive keratoconus.In this cohort study, 72 unilateral eyes were treated by CXL and divided into three groups according to central corneal thickness (CCT) measured by ultrasound pachymetry after 30-minute riboflavin.
Soeters, Nienke, Tahzib, Nayyirih G
openaire   +3 more sources

Agreement of Corneal Thickness Measurement Using Slitlamp and Ultrasound Pachymetry

Eye & Contact Lens: Science & Clinical Practice, 2012
To estimate central corneal thickness (CCT) using a slitlamp biomicroscope and analyze its agreement with ultrasonic pachymetry.Based on the clinical estimation of CCT on slitlamp examination, 133 eyes of 123 patients were assigned to 3 groups: CCT less than 500 μm, 500 to 600 μm, and greater than 600 μm.
Tushar, Agarwal, Shibal, Bhartiya, Tanuj, Dada, Anita, Panda, Vishal, Jhanji, Marco, Yu   +5 more
openaire   +2 more sources

Continuous Measurement of Corneal Dehydration With Online Optical Coherence Pachymetry

Cornea, 2006
Online optical coherence pachymetry (online OCP) allows continuous central corneal thickness measurements over time. In this study, the effect of dehydration on corneal tissue was investigated with online OCP.Twelve eyes of 11 patients were examined with online OCP, and the central corneal thickness was registered over 5 minutes after insertion of an ...
Henning, Aurich, Christopher, Wirbelauer, Jan, Jaroszewski, Christian, Hartmann, Duy Thoai, Pham   +4 more
openaire   +2 more sources

Noncontact corneal pachymetry with slit lamp-adapted optical coherence tomography

American Journal of Ophthalmology, 2002
The purpose of this study was to determine the accuracy, the reproducibility, and the limits of agreement of noncontact central corneal thickness measurement with slit lamp-adapted optical coherence tomography (OCT).Nonrandomized comparative clinical trial.In a prospective comparative observational study, a total of 108 consecutive patients (108 eyes ...
Christopher, Wirbelauer, Christian, Scholz, Hans, Hoerauf, Duy Thoai, Pham, Horst, Laqua, Reginald, Birngruber   +5 more
openaire   +2 more sources

[Corneal topography and pachymetry in normal eyes].

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology, 2003
To evaluate the corneal topography and pachymetry on normal eyes.The Orbscan corneal topography system was used to investigate corneal topography and pachymetry on 46 normal subjects.In normal eyes, island-shape was the most common type in the elevation topography of anterior corneal surface, followed by incomplete ridge, regular ridge, irregular ridge
Z, Liu, Y, Xie, M, Zhang
openaire   +1 more source

Evaluation of Corneal Pachymetry Measurements by Galilei Dual Scheimpflug Camera

European Journal of Ophthalmology, 2011
Purpose We present an evaluation of corneal pachymetry measurements by Galilei dual Scheimpflug camera by comparing central corneal thickness measured by Galilei with Orbscan II and ultrasonic pachymetry. Setting Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences and Negah Eye Center, Tehran, Iran.
Farid, Karimian, Sepehr, Feizi, Amir, Faramarzi, Azadeh, Doozandeh, Mehdi, Yaseri   +4 more
openaire   +2 more sources

Continuous Non-contact Corneal Pachymetry with a High Speed Reflectometer

Journal of Refractive Surgery, 1998
ABSTRACT PURPOSE: We developed an instrument that permits non-contact, continuous, high speed and high precision monitoring of corneal thickness and tested the stability and reproducibility of measurements made over extended time periods and under various conditions of low surface reflectivity encountered during protracted exposure of the ...
M, Böhnke, P, Chavanne, R, Gianotti, R P, Salathé   +3 more
openaire   +2 more sources