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Comparison of visual outcomes after two techniques of lenticule extraction in small incision lenticule extraction / Ahmed Gamal Elsayed Mohamed ; Supervised Mohsen Emad Eldin Salem , Ahmed Hassanin Ebeid , Ramy Riad Fikry

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ahmed Gamal Elsayed Mohamed , 2020Description: 67 P. : charts , facsimiles ; 30cmOther title:
  • مقارنة النتائج البصر{u٠٦أأ}ة لتقن{u٠٦أأ}تى استخراج العدسة القرن{u٠٦أأ}ة فى عمل{u٠٦أأ}ة استخراج العدسة القرن{u٠٦أأ}ة ذات الجرح الصغ{u٠٦أأ}ر [Added title page title]
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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Ophthalmology Summary: The aim of the work was to evaluate and compare visual outcomes after SMILE procedure between the traditional and CCL techniques using swept source OCT and Cambridge contrast test Sixty eyes of 31 patients were included in the study undergoing SMILE for correction of myopia. They were divided into two groups: 30 eyes for continuous curvilinear lenticulerrhexis (CCL) technique (group A), and 30 eyes for traditional technique group (group B). Uncorrected and corrected distance visual acuity, manifest refraction, lenticule quality, the duration of the extraction procedure, contrast and sensitivity using Cambridge contrast chart (Clement Clarke, UK), and microdistortions in Bowman{u2019}s layer by the swept source OCT (Topcon Inc., Tokyo, Japan), evaluated at 1 day and 3 months postoperatively. All eyes in both groups had an uncorrected distance visual acuity of 0.8 or better at 3 months postoperatively. All lenticules in the both group had intact, round margins. There was statistically significant difference between the two groups in microdistorsions in Bowman{u2019}s layer (BLM) at 1 day postoperatively (P=0.01). No statistical difference was found between the two groups in contrast and sensitivity (C&S) at 1 day, neither 3 months postoperatively. There were no cases of epithelial defects, infections, corneal haze, diffuse lamellar keratitis or other severe complications. Two eyes of different patients in group B witnessed suction loss and they were excluded. The CCL technique is an excellent, reproducible, less manipulative and efficient technique of SMILE surgery, that may result in better early corneal healing and visual outcomes compared to the conventional SMILE technique. It is a promising technique that deserve further research and evaluation
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.11.24.Ph.D.2020.Ah.C (Browse shelf(Opens below)) Not for loan 01010110082444000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.11.24.Ph.D.2020.Ah.C (Browse shelf(Opens below)) 82444.CD Not for loan 01020110082444000

Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Ophthalmology

The aim of the work was to evaluate and compare visual outcomes after SMILE procedure between the traditional and CCL techniques using swept source OCT and Cambridge contrast test Sixty eyes of 31 patients were included in the study undergoing SMILE for correction of myopia. They were divided into two groups: 30 eyes for continuous curvilinear lenticulerrhexis (CCL) technique (group A), and 30 eyes for traditional technique group (group B). Uncorrected and corrected distance visual acuity, manifest refraction, lenticule quality, the duration of the extraction procedure, contrast and sensitivity using Cambridge contrast chart (Clement Clarke, UK), and microdistortions in Bowman{u2019}s layer by the swept source OCT (Topcon Inc., Tokyo, Japan), evaluated at 1 day and 3 months postoperatively. All eyes in both groups had an uncorrected distance visual acuity of 0.8 or better at 3 months postoperatively. All lenticules in the both group had intact, round margins. There was statistically significant difference between the two groups in microdistorsions in Bowman{u2019}s layer (BLM) at 1 day postoperatively (P=0.01). No statistical difference was found between the two groups in contrast and sensitivity (C&S) at 1 day, neither 3 months postoperatively. There were no cases of epithelial defects, infections, corneal haze, diffuse lamellar keratitis or other severe complications. Two eyes of different patients in group B witnessed suction loss and they were excluded. The CCL technique is an excellent, reproducible, less manipulative and efficient technique of SMILE surgery, that may result in better early corneal healing and visual outcomes compared to the conventional SMILE technique. It is a promising technique that deserve further research and evaluation

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