OBJECTIVE To describe and analyze the demography and distribution of preoperative corneal astigmatism in patients undergoing cataract surgery at Mettapracharak Hospital. MATERIAL AND METHOD The medical records of consecutive patients who had cataract surgery between October 1, 2010 and September 30, 2011 at Mettapracharak Hospital were retrospectively reviewed and analyzed. Patient demographi...

purpose: to evaluate the effectiveness of limbal relaxing incision (lri) during phacoemulsification for correcting pre-existing corneal astigmatism. methods: the study included 21 eyes of 21 patients undergoing phacoemulsification combined with lri and 36 eyes of 36 patients undergoing phacoemulsification without lri as controls. lri was created according to a nomorgram based on preoperative as...

background: astigmatism is the leading complication in visual recovery after penetrating keratoplasty (pkp) and deep anterior lamellar keratoplasty (dalk); in this study, we evaluated the outcome of femtosecond laser arcuate keratotomy (flak) after dalk and pkp in iranian keratoconic patients. materials and methods: in this prospective interventional case series, refractive and keratometric pre...

purpose : to determine cyclotorsional eye movement between the upright position and the supine position, in iranian patients with high preoperative astigmatism methods : this prospective cross sectional study contains 102 eyes of 59 patients who were candidates for refractive surgery with technolas 217z100 excimer laser system for correction of high astigmatism. wavefront measurements using zyw...

PURPOSE To determine the long-term safety and effectiveness of laser in-situ keratomileusis (LASIK) in the treatment of refractive errors following penetrating keratoplasty (PK). METHODS A retrospective review was performed of 57 eyes of 48 patients with anisometropia or high astigmatism who were unable to wear glasses or a contact lens after PK and who underwent LASIK for visual rehabilitati...

PURPOSE To evaluate the visual and refractive results of laser in situ keratomileusis (LASIK) for mild to moderate myopia with or without astigmatism. SETTING Barnet-Dulaney Eye Center, Phoenix, Arizona, USA. METHODS Data were prospectively collected on 124 consecutive eyes having LASIK over 12 weeks. Eyes with a preoperative spherical equivalent (SE) from -1.35 to -10.00 diopters (D) (mean...

Background To retrospectively analyse strategies for adjusting refractive surgery plans with reference to the preoperative manifest refraction. Methods We constructed seven nomograms based on the refractive outcomes (sphere, cylinder, axis [SCA]) of 150 consecutive eyes treated with laser in situ keratomileusis for myopic astigmatism. We limited the initial data to the SCA of the manifest ref...

purpose: evaluate the effect of relaxing incision and adjustment sutures to correct astigmatism after deep anterior lamellar keratoplasty (dalk) in patients with keratoconus. materials and methods: this interventional case series included keratoconic eyes undergoing graft refractive surgery (grs) for intolerable post-dalk astigmatism. the technique of graft refractive surgery for the 5 initial ...

PURPOSE This study aimed to evaluate the alignment pattern of the graft-host junction after penetrating keratoplasty (PK) by anterior segment-optical coherence tomography (AS-OCT) and to correlate this pattern with the magnitude of postoperative astigmatism. METHODS This retrospective observational study was carried out on forty patients who underwent PK from February 2013 to August 2014. AS-...

purpose: to compare clear corneal incision and scleral tunnel incision in terms of intraocular pressure (iop), post-operative inflammation, induced astigmatism, and corneal edema in phacoemulcification. methods: this non-controlled clinical trial was conducted on 78 eyes with senile cataract. a clear corneal incision was made in 40 eyes and a scleral tunnel incision was made in 38 eyes. all eye...