Three-dimensional LASIK flap thickness variability: Topographic central, paracentral and peripheral assessment, in flaps created by a mechanical microkeratome (M2) and two different femtosecond lasers (FS60 and FS200)

Clinical Ophthalmology

Volumn 7, Issue , 2013, Pages 675-683

  Kanellopoulos, A John ^a,b   Asimellis, George ^a  

^a Laservisiongr Institute   (Greece)

^b NEW YORK UNIVERSITY SCHOOL OF MEDICINE   (United States)

Author keywords

400 Hz excimer; Allegretto Wave Eye Q; IntraLase FS60; Moria M2; Ultrasound biomicroscopy; WaveLight FS200

Indexed keywords

ACCURACY; ADULT; AGED; ARTICLE; BIOMICROSCOPY; CONTROLLED STUDY; CORNEAL EPITHELIAL THICKNESS; CORNEAL FLAP THICKNESS; FEMALE; FEMTOSECOND LASER; HUMAN; KERATOMILEUSIS; MAJOR CLINICAL STUDY; MALE; MICROKERATOME; MYOPIA; VISUAL SYSTEM PARAMETERS;

EID: 84875978190     PISSN: 11775467     EISSN: 11775483     Source Type: Journal    
DOI: 10.2147/OPTH.S40762     Document Type: Article

References (33)

1. Kanellopoulos AJ, Pe LH, Kleiman L. Moria M2single use microkeratome head in 100 consecutive LASIK procedures. J Refract Surg. 2005;21(5):476-479.
2. Kanellopoulos AJ, Conway J, Pe LH. LASIK for hyperopia with the WaveLight excimer laser. J Refract Surg. 2006;22(1):43-47.
3. Reggiani-Mello G, Krueger RR. Comparison of commercially available femtosecond lasers in refractive surgery. Expert Rev Opthalmol. 2011;6(1):55-56.
4. Juhasz T, Kastis GA, Suárez C, Bor Z, Bron WE. Time-resolved observations of shock waves and cavitation bubbles generated by femtosecond laser pulses in corneal tissue and water. Lasers Surg Med. 1996;19(1):23-31.
5. Salomão MQ, Wilson SE. Femtosecond laser in laser in situ keratomileusis. J Cataract Refract Surg. 2010;36(6):1024-1032.
6. Murakami Y, Manche EE. Comparison of intraoperative subtraction pachymetry and postoperative anterior segment optical coherence tomography of laser in situ keratomileusis flaps. J Cataract Refract Surg. 2011;37(10):1879-1883.
7. von Jagow B, Kohnen T. Corneal architecture of femtosecond laser and microkeratome flaps imaged by anterior segment optical coherence tomography. J Cataract Refract Surg. 2009;35(1):35-41.
8. Xu Y, Zhou X, Wang L, Xu H. A morphological study of corneal flap after thin-flap laser-assisted in situ keratomileusis by anterior segment optical coherence tomography. J Int Med Res. 2010;38(6):1952-1960.
9. Kanellopoulos AJ, Aslanides IM, Asimellis G. Correlation between epithelial thickness in normal corneas, untreated ectatic corneas, and ectatic corneas previously treated with CXL; is overall epithelial thickness a very early ectasia prognostic factor? Clin Ophthalmol. 2012;6:789-800.
10. Reinstein DZ, Silverman RH, Raevsky T, etal. Arc-scanning very high-frequency digital ultrasound for 3D pachymetric mapping of the corneal epithelium and stroma in laser in situ keratomileusis. J Refract Surg. 2000;16(4):414-430.
11. Reinstein DZ, Archer TJ, Gobbe M. LASIK flap thickness profile and reproducibility of the standard vs zero compression Hansatome microkeratomes: three-dimensional display with Artemis VHF digital ultrasound. J Refract Surg. 2011;27(6):417-426.
12. Kanellopoulos AJ, Asimellis G. Anterior segment optical coherence tomography-assisted topographic corneal epithelial thickness distribution imaging of a keratoconus patient. Case Rep Ophthalmol. DOI: 10.1159/000350630. In press.
13. Spadea L, Fasciani R, Necozione S, Balestrazzi E. Role of the corneal epithelium in refractive changes following laser in situ keratomileusis for high myopia. J Refract Surg. 2000;16(2):133-139.
14. Kanellopoulos AJ. Topography-guided hyperopic and hyperopic astigmatism femtosecond laser-assisted LASIK: long-term experience with the 400 Hz eye-Q excimer platform. Clin Ophthalmol. 2012;6:895-901.
15. Mrochen M, Wüllner C, Krause J, Klafke M, Donitzky C, Seiler T. Technical aspects of the WaveLight FS200 femtosecond laser. J Refract Surg. 2010;26(10):S833-S840.
16. Zhang ZH, Jin HY, Suo Y, etal. Femtosecond laser versus mechanical microkeratome laser in situ keratomileusis for myopia: Metaanalysis of randomized controlled trials. J Cataract Refract Surg. 2011;37(12):2151-2159.
17. Gil-Cazorla R, Teus MA, de Benito-Llopis L, Mikropoulos DG. Femtosecond laser vs mechanical microkeratome for hyperopic laser in situ keratomileusis. Am J Ophthalmol. 2011;152(1):16-21.
18. Kamburoǧlu G, Ertan A. Epithelial ingrowth after femtosecond laser-assisted in situ keratomileusis. Cornea. 2008;27(10):1122-1125.
19. Kezirian GM, Stonecipher KG. Comparison of the IntraLase femtosecond laser and mechanical keratomes for laser in situ keratomileusis. J Cataract Refract Surg. 2004;30(4):804-811.
20. Holzer MP, Rabsilber TM, Auffarth GU. Femtosecond laser-assisted corneal flap cuts: morphology, accuracy, and histopathology. Invest Ophthalmol Vis Sci. 2006;47(7):2828-2831.
21. Kim JY, Kim MJ, Kim TI, Choi HJ, Pak JH, Tchah H. A femtosecond laser creates a stronger flap than a mechanical microkeratome. Invest Ophthalmol Vis Sci. 2006;47(2):599-604.
22. Montes-Micó R, Rodríguez-Galietero A, Alió JL. Femtosecond laser versus mechanical keratome LASIK for myopia. Ophthalmology. 2007;114(1):62-68.
23. Ahn H, Kim JK, Kim CK, etal. Comparison of laser in situ keratomileusis flaps created by 3 femtosecond lasers and a microkeratome. J Cataract Refract Surg. 2011;37(2):349-357.
24. Chen S, Feng Y, Stojanovic A, Jankov MR 2nd, Wang Q. IntraLase femtosecond laser vs mechanical microkeratomes in LASIK for myopia: a systematic review and meta-analysis. J Refract Surg. 2012;28(1):15-24.
25. Khoramnia R, Salgado JP, Lohmann CP, Kobuch KA, von Mohrenfels CW. Precision, morphology, and histology of corneal flap cuts using a 200-kHz femtosecond laser. Eur J Ophthalmol. 2012;22(2):161-167.
26. Kohnen T, Klaproth OK, Derhartunian V, Kook D. [Results of 308 consecutive femtosecond laser cuts for LASIK.] Ophthalmologe. 2010;107(5):439-445. [German].
27. Heichel J, Hammer T, Sietmann R, Duncker GI, Wilhelm F. [Scanning electron microscopic characteristics of lamellar keratotomies using the Femtec femtosecond laser and the Zyoptix XP microkeratome. A comparison of quality.] Ophthalmologe. 2009;107(4):333-340. [German].
28. Kanellopoulos AJ, Pallikaris IG, Donnenfeld ED, Detorakis S, Koufala K, Perry HD. Comparison of corneal sensation following photorefractive keratectomy and laser in situ keratomileusis. J Cataract Refract Surg. 1997;23(1):34-38.
29. Choudhri SA, Feigenbaum SK, Pepose JS. Factors predictive of LASIK flap thickness with the Hansatome zero compression microkeratome. J Refract Surg. 2005;21(3):253-259.
30. Hatch BB, Moshirfar M, Ollerton AJ, Sikder S, Mifflin MD. A prospective, contralateral comparison of photorefractive keratectomy (PRK) versus thin-flap LASIK: assessment of visual function. Clin Ophthalmol. 2011;5:451-457.
31. Koch DD. The riddle of iatrogenic keratectasia. J Cataract Refract Surg. 1999;25(4):453-454.
32. Shetty R, Malhotra C, D'Souza S, Wadia K. WaveLight FS200 vs Hansatome LASIK: Intraoperative Determination of Flap Characteristics and Predictability by Hand-held Bioptigen Spectral Domain Ophthalmic Imaging System. J Refract Surg. 2012;28(11):S815-S820.
33. Kanellopoulos AJ, Asimellis G. Digital analysis of flap parameter accuracy and objective assessment of opaque bubble layer in femtosecond laser-assisted LASIK: a novel technique. Clin Ophthalmol. 2013;7:1-9.