PMID: 9530593Apr 8, 1998Paper

Mathematics of laser in situ keratomileusis for high myopia

Journal of Cataract and Refractive Surgery
L E Probst, J Machat

Abstract

To determine the maximal ablation that can be safely performed with laser in situ keratomileusis (LASIK) to maintain long-term corneal integrity. TLC The Windsor Laser Center, Windsor, Canada. The pretreatment protocols for the VISX Star, Summit Omnimed, and Chiron Technolas 116 excimer lasers generally apply 1 to 2 microns per diopter (D) at an optical zone of 3.0 mm or less to avoid the postoperative central islands that can occur with broad-beam excimer lasers. The ablation depth per diopter for the VISX Star, Summit Omnimed, Chiron Technolas 116, and Chiron Technolas 217 excimer lasers ranges from 10 to 24 microns per diopter depending on the size and number of ablation zones and the excimer laser used. Previous experience with lamellar surgery suggests that at least 250 microns of central posterior stromal tissue should be preserved to maintain long-term corneal integrity and avoid postoperative corneal ectasia. If a 160 microns flap is created for LASIK, the average 550 microns cornea will have 140 microns of corneal stroma available for ablation. Depending on the excimer laser and ablation nomogram used, the maximal LASIK correction for the average cornea ranges from 9.8 to 15.0 D. The preoperative corneal thickness and ...Continue Reading

References

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Citations

May 8, 2010·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Xiaoyan YangLihua Fang
Jun 26, 2010·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Eleftherios I PaschalisLambros A Razis
Dec 4, 2001·American Journal of Ophthalmology·W W Haw, E E Manche
Apr 18, 2000·Ophthalmology·G M Kawesch, G M Kezirian
Jun 1, 2000·Journal of Cataract and Refractive Surgery·W A Lyle, G J Jin
Aug 8, 2001·Journal of Cataract and Refractive Surgery·F A Eggink, W H Beekhuis
Oct 22, 2002·Journal of Cataract and Refractive Surgery·Enrique SuarezJ Fernando Arevalo
Oct 3, 2003·Journal of Cataract and Refractive Surgery·Osama Giledi, Sheraz M Daya
Jul 29, 2003·Cornea·David W JacksonDouglas D Koch
Jul 29, 2003·Cornea·Isabel AsensioJuan A Sanchis-Gimeno
Jan 3, 2001·Journal of Cataract and Refractive Surgery·W W Haw, E E Manche
Jun 22, 1999·Journal of Cataract and Refractive Surgery·L E ProbstJ Bell
Apr 30, 2002·Journal of Cataract and Refractive Surgery·Omür O Uçakhan
Apr 11, 2003·Journal of Cataract and Refractive Surgery·Arne ViestenzBerthold Seitz
Jan 8, 2004·Journal of Cataract and Refractive Surgery·Perry S Binder
Dec 25, 2004·Journal of Cataract and Refractive Surgery·Christopher Wirbelauer, Duy Thoai Pham
Apr 13, 1999·Journal of Cataract and Refractive Surgery·H S Geggel, A R Talley
May 19, 2005·Journal of Cataract and Refractive Surgery·Maria Jonsson, Anders Behndig
Nov 16, 2001·Journal of Cataract and Refractive Surgery·W A Lyle, G J Jin
Apr 20, 2000·Journal of Cataract and Refractive Surgery·S W KangW J Kim
May 16, 2007·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Loretta T NgAndrew L Nguyen
Apr 3, 2007·Journal of Cataract and Refractive Surgery·Patrick I CondonPerry S Binder
Jan 24, 2007·Ophthalmology·Ryo NishimuraKazuo Tsubota
Jul 16, 2003·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Andrew K C Lam, Judy S Chan
Sep 3, 2004·Journal of Cataract and Refractive Surgery·Christopher Wirbelauer, Duy Thoai Pham
May 8, 2004·Journal of Cataract and Refractive Surgery·Kerry D SolomonUNKNOWN Flap Thickness Study Group
May 8, 2004·Journal of Cataract and Refractive Surgery·Hyuk-Jin ChoiJae-Lim Lee
May 8, 2004·Journal of Cataract and Refractive Surgery·Kazunori MiyataTetsuro Oshika
Oct 13, 2012·Korean Journal of Ophthalmology : KJO·Sangkyu LeeHyun Seung Kim
Apr 26, 2008·Ophthalmic Surgery, Lasers & Imaging : the Official Journal of the International Society for Imaging in the Eye·Huey-Chuan ChengChi-Wang Yau
Apr 20, 2004·Journal of Cataract and Refractive Surgery·Guy M Kezirian, Karl G Stonecipher
Dec 2, 2006·Journal of Cataract and Refractive Surgery·Patrick I Condon
Aug 28, 2007·Journal of Cataract and Refractive Surgery·Perry S Binder
Aug 18, 2009·Journal of Cataract and Refractive Surgery·Takeshi IdeTerrence P O'Brien

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