Corneal astigmatism
Influence of posterior corneal astigmatism on postoperative refractive astigmatism in pseudophakic eyes after cataract surgery
... posterior corneal shapes ...keratometric astigmatism calculated based on the measurements of anterior corneal surface alone significantly differ from that based on both anterior and posterior ...
9
<p>Distribution and related factors of corneal regularity and posterior corneal astigmatism in cataract patients</p>
... and astigmatism types between high myopia group and control group, which means that PCA values and astigma- tism types are relatively stable, and will not change with the change of ...total astigmatism of ...
12
Effects of chalazia on corneal astigmatism
... using corneal topog- raphy and wavefront ...the corneal topo- graphical and wavefront ...on corneal astigmatism can be suggested as ...corneal astigmatism. In con- trast, cornea ...
9
Evaluation of biometry and corneal astigmatism in cataract surgery patients from Central China
... Corneal astigmatism across all age groups showed a similar distribution pattern compared to previous studies [6, 8, 9, ...a corneal astigmatism between ...with corneal ...
7
The Effect of Anterior Corneal Astigmatism Orientation on Toric Intraocular Lens Outcomes
... The study group included all adult patients 70 years of age or younger who underwent primary refractive lens exchange with implantation of an Oculentis M-Plus Toric intraocular lens (Oculentis; Eerbeek, Netherlands) at ...
10
Surgically Induced Corneal Astigmatism Following Cataract Surgery
... clear corneal incisions of 3.0 mm and they observed corneal flattening at incision site of all types, being more frequent with superior-lateral ...superior corneal incisions, astigmatism was ...
7
<p>Posterior corneal astigmatism: a review article</p>
... an astigmatism 2 or more ...especially astigmatism at the time of the ...a corneal astigmatism that is more than ...of astigmatism by neglecting the posterior astigma- tism can cause ...
12
Torsional and flattening effect on corneal astigmatism after cataract surgery: a retrospective analysis
... neal astigmatism (PCA) contributes significantly to the TCA and these studies report posterior astigmatism values of ...in corneal SIA estimation as well as identification of preexisting ...
9
Aims: To study the corneal astigmatism in manual small incision cataract surgery following temporal
... occur, astigmatism should be reduced to the minimal. Pre existing astigmatism is one of the main factors which affect postoperative astigmatism [3,7,9] ...pre-existing corneal ...
8
Investigating the impact of preoperative corneal astigmatism orientation on the postoperative spherical equivalent refraction following intraocular lens implantation
... anterior corneal astigmatism orientation on the prediction error following IOL im- ...Anterior corneal astigmatism measurements are most commonly obtained with the IOLMaster partial coherence ...
8
Gender-differences in age-related changes of corneal astigmatism in Korean cataract patients
... study, corneal astigmatism was classified into three categories: anterior astigmatism, posterior astigma- tism, and total ...posterior corneal astigmatism were obtained by anterior and ...
8
Transitional conic toric intraocular lens for the management of corneal astigmatism in cataract surgery
... with corneal refractive surgery. Conclusion: Preexisting regular corneal astigmatism was effectively and safely corrected by the implantation of the transitional conic toric IOL in patients ...
9
Research Article Femtosecond laser-assisted arcuate keratotomy in correction of corneal astigmatism
... of astigmatism using the Alpins method is considered an accurate and effective method for the proper evaluation of astigmatism, as it deals with astigmatism not just in the dioptric power of the ...
8
Comparability and repeatability of different methods of corneal astigmatism assessment
... This was an institutional cross-sectional study that included 15 healthy volunteers (30 eyes). All eyes were assessed by the four techniques. Three consecutive measures (10 minutes apart) were performed in each eye by ...
6
Effect of Pterygium on Corneal Astigmatism
... The use of computerized videokeratoscopes has grown rapidly in recent years. These devices provide computer analyses of multiple rings (often 16 or 32), producing color-coded dioptric maps of the corneal surface. ...
70
Predicting the necessity of LASIK enhancement after cataract surgery in patients with multifocal IOL implantation
... The astigmatism measured preoperatively using manifest refraction had an accuracy of 64% in discriminating between the ...length, corneal astigmatism, and intraocular pressure were very close to ...
5
The effect of pterygium surgery on contrast sensitivity and corneal topographic changes
... reduces corneal astigmatism and improves topographic ...K astigmatism values greater than 2D. Corneal topography and contrast sensitivity values in patients with pterygia are useful either as ...
5
Refractive cylinder outcomes after calculating toric intraocular lens cylinder power using total corneal refractive power
... residual astigmatism after uneventful cataract surgery using toric ...in corneal astigmatism measurement, and postoperative factors such as final toric IOL orientation, variability in surgically ...
7
Toric intraocular lenses for correction of astigmatism in keratoconus and after corneal surgery
... Toric IOLs were used from three different manufacturers: AT TORBI 709 (Carl Zeiss Meditec AG), Tecnis Toric ZCT IOL (Abbott Medical Optics, Inc, Santa Ana, CA, USA), and Acrysof SN6AT toric IOL (Alcon Laboratories, Inc., ...
7
Two-year topographic and densitometric outcomes of accelerated (45 mW/cm2) transepithelial corneal cross-linking for keratoconus: a case-control study
... (Km), corneal astigmatism (CA), maximum keratometry (Kmax), central corneal thickness (CCT), thinnest corneal thickness (TCT), anterior corneal elevation (ACE) and posterior ...
10