الفهرس | Only 14 pages are availabe for public view |
Abstract Introduction: The pentacam is a multipurpose instrument that is capable of external ocular photography, corneal pachymetry, corneal topography, densitometry and anterior chamber analysis. Pentacam gives comprehensive data about preoperative astigmatism, lens denisty and refractive power helping in optimizing the visual outcome after cataract surgery The aim of this study was to evaluate the astigmatic changes before and after cataract surgery. Patients and Methods: A total of assessed 50 cataract patients with preoperative corneal astigmatism between 0.5 and 2.50 diopters (D), aged 48 – 79 years, at the International Eye Hospital in Damietta between March 2017 and June 2018. All patients were adequately informed and signed a consent form before surgery after they had received an explanation about the nature of the study and its potential complications. The study was approved by the local ethics committee. All the procedures were in accordance with the ethical standards of the responsible committee on human experimentation. Inclusion criteria were age older than 40 years and, visually significant cataract (best corrected visual acuity worse than 0.5 immature senile & posterior sub capsular cataract detected by slit lamp, lens densitometry from 0 to 4 detected by pentacam), regular corneal astigmatism between 0.5 D and 2.00 D, and pharmacologic mydriasis of to allow proper intraoperative visualization. The exclusion criteria were previous intraocular surgery in the eye, pterygium, ocular disease that would lead to poor postoperative corrected Summary and Conclusion 82 visual acuity (corneal scarring, uveitis, advanced glaucoma, neuro-ophthalmic disease, significant macular disease or other retinopathy), zonule or pupil abnormalities and any irregular corneal astigmatism. Preoperatively, Before surgery,all patients underwent a complete ophthalmological examination that included the following: manifest refraction, measurement of LogMAR uncorrected (UDVA), |