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A steep peripheral ring in irregular cornea topography, real or an instrument error?
(2016-07-01)
Purpose To demonstrate that the steep peripheral ring (red zone) on corneal topography after myopic laser in situ keratomileusis (LASIK) could possibly due to instrument error and not always to a real increase in corneal ...
Comparación entre los Anillos de Plácido y la Prueba de Hartmann modificada como método de medida de la superficie corneal
(Universidad de La Salle. Ediciones Unisalle, 13 d)
Validity of autorefractor based screening method for irregular astigmatism compared to the corneal topography- a cross sectional study
(2017-09-18)
● AIM: To present a method of screening for irregular astigmatism with an autorefractor and its determinants compared to corneal topography. ● METHODS: This cross-sectional validity study was conducted in 2013 at an eye ...
Comparison of topographic corneal irregularity after LASIK and intrastromal corneal ring segments in the same patients
(Slack Inc, 2005-11-01)
PURPOSE: To retrospectively compare the irregularity of the corneal surfaces of 14 patients after LASIK in 1 eye and placement of intrastromal corneal ring segments (ICRS) in the other eye.METHODS: In a within-patient ...
Corneal Tomography Multivariate Index (CTMVI) effectively distinguishes healthy corneas from those susceptible to ectasia
(2021-09-01)
Background: Keratoconus (KC) is a multifactorial progressive corneal disease, pathogenically characterized by genetic, biochemical, and environmental key factors. Nevertheless, current tools used for its diagnosis, such ...
Surgical management of astigmatism with toric intraocular lenses
(Consel Brasil Oftalmologia, 2014-04-01)
Correction of corneal astigmatism is a key element of cataract surgery, since post-surgical residual astigmatism can compromise the patient's uncorrected visual acuity. Toric intraocular lenses (IOLs) compensate for corneal ...
Keratoconus and corneal stability after radial keratectomy in the fellow eye: case report
(Conselho Brasileiro de Oftalmologia, 2013-06-01)
Keratoconus has usually been described as bilateral but asymmetric disease. Corneal ectasia is one of the long-term complications of modern refractive surgery, especially those submitted to laser in situ keratomileusis ...
Analysis of variability of corneal topographies among healthy patients in seven different devices
(Universidade Federal de São Paulo (UNIFESP), 2014-11-29)
Purpose: To compare corneal measurements of healthy patients among seven different topographies: IOL Master Zeiss Biometer, Wavelight Allegro Topolyzer, Allegro Oculyzer, Haag-streit Lenstar, CSO Corneal Topographer, Oculus ...
Tomographic Parameters for the Detection of Keratoconus: Suggestions for Screening and Treatment Parameters
(Lippincott Williams & Wilkins, 2014-11-01)
Tomographic corneal evaluation has added significantly more information in the evaluation of the ectatic cornea. Additional information from the posterior cornea and a full corneal thickness map in addition to anterior ...