6Rao SN.Epstein RJ.Early onset ectasis following laser in situ keratomileusis,case report and literature review[J].J Refract Surg, 2002.18(2) : 177-194.
8Wang Z,Chen JQ,Yang B.Posterior coreal surface topographic changes after laser in situ keratomileusis are related to residual coreal bed thickness[J].Ophthalmology,1999,106:406-409.
9Pflugefelder SC,Liu Z,Feuer W,verrn A.Coneal thickness indices discriminate between keratocomus and contaet lens-induced corneal thinning[J].Ophthalmology,2002,109(12):2336-2341.
4Argento C , Cosentino MJ, Tytiun A, Rapetti G, Zarate J.Corneal ectasia after laser in situ keratomileusis [J]. J Cataract Refract Surg 2001 ,27 : 1440-1448.
5Pallikaris IG,Kymionis GD,Astyrakakis NI. Corneal ectasia induced by laser in situ keratomileusis [J]. J Cataract Refract Surg 2001; 27: 1796-1802.
6Wang Z, Chen JQ, Yang B. Posterior corneal surface topographic changes after laser in situ keratomileusis are related to residual comeal bed thickness [J]. Ophthalmology 1999 ; 106 :406-409.
7Hernandez-Quintela E, Samapunphong S, Khan BF, Gonzalez B, Lu PC, Farah SG. Posterior corneal surface changes after refractive surgery[J]. Ophthalmology 2001 ; 108.. 1415-1422.
5Yay1ali V,Kaufman SC,Thompson HW.Corneal thickness measurements with Orbscan Topography System and ultrasonic pachymetry[J].J Cataract Refract Surg,1997,23:1345-1350
6Wang Z,Chen J,Yang B.Posterior corneal surface topographic changes after laser in situ keratomileusis are related to residual corneal bed thickness[J].Ophthalmology,1999,106 (2):406-409
