PMID: 9159676Apr 1, 1997Paper

Corneal versus scleral tunnel incision in cataract surgery: a randomized study

Journal of Cataract and Refractive Surgery
T OlsenJ O Hjortdal

Abstract

To compare the induced regular and irregular astigmatism after scleral and corneal tunnel incision. University hospital outpatient cataract clinic. One hundred phacoemulsification patients with less than 1.0 diopter (D) of preoperative astigmatism were randomly assigned to have a clear corneal incision (50 patients) or a scleral tunnel incision (50 patients). All incisions were 3.5 to 4.0 mm wide and were made in the steepest axis of the corneal astigmatism. The surgically induced astigmatism was analyzed by vector analysis from keratometric data, as well as by Fourier harmonic series analysis of the topographic data. One day after surgery, the surgically induced astigmatism (vector analysis, keratometry) was 1.41 D +/- 0.66 (SD) and 0.55 +/- 0.31 D in the corneal incision group and the scleral incision group, respectively (P < .01). Six months after surgery, the induced astigmatism was 0.72 +/- 0.35 D and 0.36 +/- 0.21 D in the two groups, respectively (P < .01) The corneal topography data confirmed the regular astigmatism changes found by conventional keratometry. However, in addition, Fourier harmonic series analysis of the topography data showed significantly more irregular induced astigmatism with the corneal approach than...Continue Reading

References

Jan 1, 1991·Journal of Cataract and Refractive Surgery·H B Grabow
Jan 1, 1991·Journal of Cataract and Refractive Surgery·J P Gills, D R Sanders
May 1, 1995·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·J O HjortdalT Bek
Nov 1, 1994·Journal of Cataract and Refractive Surgery·J H LevyK Chadwick
Sep 1, 1994·Journal of Cataract and Refractive Surgery·T Olsen, M Dam-Johansen
Apr 1, 1996·Journal of Cataract and Refractive Surgery·T OlsenJ O Hjortdal

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Citations

Oct 1, 2014·Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus·Palak B WallUNKNOWN Infant Aphakia Treatment Study Group
Apr 30, 2002·Journal of Cataract and Refractive Surgery·Stephan KohnenThomas Kohnen
Dec 25, 2002·Journal of Cataract and Refractive Surgery·William N Charman
Oct 18, 2000·Journal of Cataract and Refractive Surgery·K HayashiF Hayashi
Feb 23, 2000·Journal of Cataract and Refractive Surgery·K A Buzard, J L Febbraro
Jan 26, 2000·Journal of Cataract and Refractive Surgery·N LyhneM Kjeldgaard
May 7, 2013·Journal of Refractive Surgery·Sebastiano SerraoMarco Lombardo
Dec 7, 2007·American Journal of Ophthalmology·Gerrit R J MellesJacqueline van der Wees
Feb 7, 2006·American Journal of Ophthalmology·Ken Hayashi, Hideyuki Hayashi
Nov 15, 2006·Cornea·Gerrit R J MellesJacqueline van der Wees
Mar 10, 2018·Cornea·Alejandra Consejo, Jos J Rozema
Dec 21, 2006·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Scott A ReadLeo G Carney
Jun 4, 2016·International Ophthalmology Clinics·Sabite E GokceZaina N Al-Mohtaseb
Dec 2, 2006·Journal of Cataract and Refractive Surgery·Edmondo BorasioVincenzo Maurino
Jan 27, 2005·Clinical & Experimental Ophthalmology·John Landers, Henry Liu
Nov 17, 2015·Current Opinion in Ophthalmology·Hassan HashemiAbbasali Yekta
Mar 23, 2021·Journal of Cataract and Refractive Surgery·Olav KristianslundLiv Drolsum

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