Corneal topography
Corneal Topography With Upper Eyelid Platinum Chain Implantation Using the Pretarsal Fixation Technique
... Methods: This is a prospective, cohort study. Fifteen eyes of 15 patients underwent upper eyelid platinum chain implantation, with the pretarsal fixation technique, for facial nerve palsy. Information recorded included ...
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Comparison of corneal topography with automated refractometry in the astigmatism of keratoconus.
... This is to certify that the dissertation entitled, “COMPARISON OF CORNEAL TOPOGRAPHY WITH AUTOMATED REFRACTOMETRY IN THE ASTIGMATISM OF KERATOCONUS” submitted by Dr.M.S.GOKILA, in partial fulfillment for ...
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Influence of overnight orthokeratology lens fitting decentration on corneal topography reshaping
... of corneal topography as well as corneal and ocular aberrations induced by OK can be influenced by lens fitting decentration ...of corneal surface or wavefront [20, 23–29] between baseline and ...
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Corneal topography in keratoconus: state of the art
... the corneal topography is the possibility of generating a series of indices that quan- tify the level of irregularity of the corneal morphology at the local or global ...the corneal ...
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Curvature sensor for the measurement of the static corneal topography and the dynamic tear film topography in the human eye
... the corneal topography of an astigmatic eye obtained from the ...The topography map is represented in terms of the radial curvature, this being the preferred rep- resentation for corneal ...
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Comparison of Corneal Topography in Eyes Before and One Month After the Phacoemulsification Procedure
... the corneal under examination, both preoperative and ...in corneal topography at 3mm and 5mm central diameter after phacoemulsification due to corneal ...
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Role of orthokeratology in refractive correction and an analysis of changes in corneal topography following overnight Orthokeratology.
... Predicting the success of ortho-k using the early fitting methods was dependent on the initial shape of the cornea which was determined based on an inherently inaccurate corneal measurement system of keratometry. ...
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Long-term changes in keratometry and refraction after small aperture corneal inlay implantation
... Longitudinal corneal topography revealed a pattern of corneal steepening over the body of the inlay and flattening over the aperture, cor- relating with a hyperopic ...baseline. Corneal ...
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Management of keratoconus with contact lens
... cornea, corneal thickness and tissue ...videokeratoscopy. Corneal topography used widely nowadays has evolved through placido disc based devices to slit scanning and Scheimpflug imaging devices and ...
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Customized epithelial debridement for thin ectatic corneas undergoing corneal cross-linking: epithelial island cross-linking technique
... minimum corneal thickness less than 400 μm after epithelial removal represent a contraindication to standard epithelium-off cross-linking (CXL) treatment due to a significant endothelial cell density decrease and ...
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52. Prevalence of subtypes of epithelial and sub-epithelial corneal dystrophy in Punjab-Pakistan
... is corneal topography is a computer-assisted diagnostic tool that converts surface curvature of the cornea into three dimension ...of corneal topography is its ability to detect irregular ...
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Comparison of keratometric measurements between color light-emitting diode topography and Scheimpflug camera
... diode corneal topography (Cassini; i-Optics, Hague, Netherlands) and Scheimpflug camera ker- atometry (Pentacam HR; Oculus, Wetzlar, Germany) in that order, at an interval of under 10 ...
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In vivo study of corneal responses to increased intraocular pressure loading
... monitor corneal topography in this study have been described and evalu- ated previously ...keratographic corneal topographer (Medmont Vermont, Victoria, Australia) was used to record baseline topog- ...
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Retracted: Prevalence of refractive errors and corneal topographic changes in unilateral congenital ptosis vs the fellow eye: a clinical study
... All the patients were examined by the same examiner. A brief ocular and medical history was taken. Visual acuity was assessed by Snellen’s chart for patients >5 yrs of age and by Picture chart or Tumbling E-chart for ...
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Success rates in the correction of astigmatism with toric and spherical soft contact lens fittings
... The dioptric power of a soft contact lens on the eye is a func- tion of its off-eye power, lens flexion on the eye, lens hydra- tion and corneal topography. Though patient satisfaction and subjective visual ...
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The effect of Gonioscopy on keratometry and corneal surface topography
... With current surgical trends using the latest advances in intraocular lenses and techniques, a patient population with increasingly higher expectations and busy outpatient clinics, the need for accurate and reproducible ...
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Comparison of Placido disc and Scheimpflug image-derived topography-guided excimer laser surface normalization combined with higher fluence CXL: the Athens Protocol, in progressive keratoconus
... alternative corneal topography data sources used in topography-guided excimer laser normalization, combined with corneal collagen cross-linking in the management of keratoconus using the ...
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Simultaneous topography-guided PRK followed by corneal collagen cross-linking after lamellar keratoplasty for keratoconus
... excluded. Corneal topography and corneal thickness were analyzed during each examination using a high resolution tomographer (Precisio, iVis Technologies) and computer- ized videokeratoscopy ...
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Effect of Pterygium on Corneal Astigmatism
... central corneal asymmetry and is useful in monitoring changes in corneal ...anterior corneal surface and has been shown to provide a good correlation with best spectacle-corrected visual ...the ...
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Ocular Response Analyzer to Assess Age Related Biomechanical Characteristics of the Cornea in a Taiwanese Population
... the corneal biomechanical properties in males and ...Third, corneal problems also influenced hysteresis The selection biases may exist if disease was not ...
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