[PDF] Top 20 <p>Posterior corneal astigmatism: a review article</p>
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<p>Posterior corneal astigmatism: a review article</p>
... the corneal evaluation is measuring its highest and lowest ...for corneal evaluation are based on some assumptions that one may fi nd the correct measure- ments only in those patients who have normal cornea, ... See full document
12
Influence of posterior corneal astigmatism on postoperative refractive astigmatism in pseudophakic eyes after cataract surgery
... refractive astigmatism in pseudophakic eyes after non-toric IOL ...total corneal power (including actual measurements of the posterior corneal curvature) and keratometric power (neglecting ... See full document
9
Original Article Effect of a 2-mm incision on keratometry and visual quality after small-incision lenticule extraction
... We discovered that a 2-mm incision enables formation of a comparative uniform lenticule during SMILE surgery and prevents central visu- al quality decrease, but axial dispersion of flat keratometry and visual quality ... See full document
8
Comparison of keratometric measurements between color light-emitting diode topography and Scheimpflug camera
... of posterior corneal astigmatism in cataract surgery for the minimization of postoperative remnant astigmatism have increased ...actual corneal astigmatism measurement using the ... See full document
9
Correction of irregular and induced regular corneal astigmatism with toric IOL after posterior segment surgery: a case series
... phacovitrectomy with toric IOL implantation is an effect- ive method for correcting vitreoretinal diseases, cataract and pre-existing regular corneal astigmatism [1]. In vitrec- tomized eyes, the ... See full document
6
Two-year topographic and densitometric outcomes of accelerated (45 mW/cm2) transepithelial corneal cross-linking for keratoconus: a case-control study
... the corneal topographic parameters, including flat kerato- metry value (K1), steep keratometry value (K2), mean keratometry value (Km), corneal astigmatism (CA), maximum keratometry value (Kmax), ... See full document
10
Investigating the impact of preoperative corneal astigmatism orientation on the postoperative spherical equivalent refraction following intraocular lens implantation
... pre-existing corneal astigmatism can limit the outcomes of postoperative vis- ual ...have corneal astigmatism greater than 1.00 D [5]. Preoperative corneal astigmatism is an ... See full document
8
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 ... See full document
7
Effects of chalazia on corneal astigmatism
... This study adhered to the tenets of the Declaration of Helsinki and was approved by the Institutional Review Board of Hallym University Medical Center. Medical charts of a total of 114 eyes from 64 patients were ... See full document
9
Surgically induced astigmatism after phacoemulsification by temporal clear corneal and superior clear corneal approach: a comparison
... and posterior segment exami- nations were done and the cataract was graded according to Lens Opacification Classification System ...clear corneal approach, ... See full document
6
Total and posterior corneal shape changes after temporal versus nasal clear corneal incision cataract surgery
... and posterior cornea by merging Placido-ring topography with the Scheimpflug ...the corneal astigmatism of the total, anterior and posterior cornea were determined with the simulated ... See full document
5
Gender-differences in age-related changes of corneal astigmatism in Korean cataract patients
... irregular astigmatism, glaucoma, traumatic cataract, nystagmus, pterygium, ocular inflammation, dry eye, prior contact lens wear, or poor-quality scans with a Pentacam ...without corneal astig- matism (< ... See full document
8
Novel approach for phacoemulsification during combined phacovitrectomy
... clear corneal incision ...induced astigmatism (SIA); it provides adequate visualization of the posterior segment because the temporal incision is further from the visual axis than the superior ... See full document
6
<p>Outcomes of Femtosecond Laser Arcuate Incisions in the Treatment of Low Corneal Astigmatism</p>
... retrospective review of adult subjects who underwent cataract surgery by a single surgeon (GW), between January 1, 2018, and December 31, 2018, who had <1 D of preoperative corneal ...of ... See full document
8
<p>Distribution and related factors of corneal regularity and posterior corneal astigmatism in cataract patients</p>
... surgery. Corneal topography via Sirius imaging system involves a rapid, repeatable, non-contact, 360° rotational Scheimp fl ug camera, and a ...and posterior corneal surface topography and elevation, ... See full document
12
<p>Contributions of Anterior Corneal and Ocular Residual Astigmatism to Autorefraction Astigmatism in a Myopic Adult Sample</p>
... the posterior cornea partially cancels the anterior corneal ...residual astigmatism (the difference between refractive and keratometric astigma- tism) using corneal topography, and they found ... See full document
10
<p>Biometric Parameters and Corneal Astigmatism: Differences Between Male and Female Eyes</p>
... Ferrer-Blasco et al 16 retrospectively reviewed the clin- ical records of 2654 patients attending a primary eyecare center. They found both keratometric radii and CA to be statistically different between males and ... See full document
10
Clinical efficacy of implantation of toric intraocular lenses with different incision positions: a comparative study of steep-axis incision and non-steep-axis incision
... Sixty patients who underwent uneventful phacoemul- sification combined with AcrySof Toric IOL (Alcon Laboratories, Inc., Fort Worth, TX, USA) implantation between September 2014 and April 2015 in Eye and ENT Hospital of ... See full document
6
Effect of Pterygium on Corneal Astigmatism
... normal corneal epithelial basement ...the corneal or conjunctival tissue causes abnormal antigenicity and leads to a chronic inflammatory cell infiltrate with a subsequent reparative fibrovascular ... See full document
70
Visual symptoms associated with refractive errors among Thangka artists of Kathmandu valley
... and astigmatism, sore/ach- ing eye ( p = 0.003), dry eye ( p = ...( p = ...with astigmatism. It is clear that uncorrected astigmatism may cause continuous adjustment in the ... See full document
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