Journal of Cataract & Refractive Surgery
Volume 36, Issue 3 , Pages 431-436 , March 2010

Manual limbal markings versus iris-registration software for correction of myopic astigmatism by laser in situ keratomileusis

Presented in part at the regional meeting of the International Society of Refractive Surgery of the American Academy of Ophthalmology, Cancun, Mexico, May 2008.

  • Elizabeth P. Shen, MD
    • ,
  • Wei-Li Chen, MD, PhD
    • ,
  • Fung-Rong Hu, MD

      Affiliations

    • Corresponding Author InformationCorresponding author: Fung-Rong Hu, MD, Department of Ophthalmology, National Taiwan University Hospital, Medical College, National Taiwan University, 7 Chung-Shan South Road, Taipei, Taiwan.

Received 27 March 2009 ,Revised 13 September 2009 ,Accepted 21 October 2009.

References 

  1. Smith EM, Talamo JH, Assil KK, Petashnick DE. Comparison of astigmatic axis in the seated and supine positions. J Refract Corneal Surg. 1994;10:615–620
  2. Smith EM, Talamo JH. Cyclotorsion in the seated and supine patient. J Cataract Refract Surg. 1995;21:402–403
  3. Swami AU, Steinert RF, Osborne WE, White AA. Rotational malposition during laser in situ keratomileusis. Am J Ophthalmol. 2002;133:561–562
  4. Ciccio AE, Durrie DS, Stahl JE, Schwendeman F. Ocular cyclotorsion during customized laser ablation. J Refract Surg. 2005;21:S772–S774
  5. Tjon-Fo-Sang MJ, de Faber J-T HN, Kingma C, Beekhuis WH. Cyclotorsion: a possible cause of residual astigmatism in refractive surgery. J Cataract Refract Surg. 2002;28:599–602
  6. Chernyak DA. Cyclotorsional eye motion occurring between wavefront measurement and refractive surgery. J Cataract Refract Surg. 2004;30:633–638
  7. Stevens JD. Astigmatic excimer laser treatment: theoretical effects of axis misalignment. Eur J Implant Refract Surg. 1994;6:310–318
  8. Porter J, Yoon G, MacRae S, Pan G, Twietmeyer T, Cox IG, et al. Surgeon offsets and dynamic eye movements in laser refractive surgery. J Cataract Refract Surg. 2005;31:2058–2066erratum 2006; 32:378
  9. Alpins NA. Vector analysis of astigmatism changes by flattening, steepening, and torque. J Cataract Refract Surg. 1997;23:1503–1514
  10. Shaikh NM, Manche EE. Laser in situ keratomileusis for myopia and compound myopic astigmatism using the Technolas 217 scanning-spot laser. J Cataract Refract Surg. 2002;28:485–490
  11. Farah SG, Olafsson E, Gwynn DG, Azar DT, Brightbill FS. Outcome of corneal and laser astigmatic axis alignment in photoastigmatic refractive surgery. J Cataract Refract Surg. 2000;26:1722–1728
  12. Chernyak DA. Iris-based cyclotorsional image alignment method for wavefront registration. IEEE Trans Biomed Eng. 2005;52:2032–2040
  13. Ghosh S, Couper TA, Lamoureux E, Jhanji V, Taylor HR, Vajpayee RB. Evaluation of iris recognition system for wavefront-guided laser in situ keratomileusis for myopic astigmatism. J Cataract Refract Surg. 2008;34:215–221
  14. Alpins NA. A new method of analyzing vectors for changes in astigmatism. J Cataract Refract Surg. 1993;19:524–533
  15. Alpins NA, Goggin M. Practical astigmatism analysis for refractive outcomes in cataract and refractive surgery. Surv Ophthalmol. 2004;49:109–122
  16. Alpins N. Astigmatism analysis by the Alpins method. J Cataract Refract Surg. 2001;27:31–49
  17. Schipper I, Senn P, Wienecke L, Øyo-Szerenyi KD. Photoastigmatism refractive keratectomy for primary treatment and revision of myopic astigmatism. J Cataract Refract Surg. 1997;23:1265–1471
  18. Chang J. Cyclotorsion during laser in situ keratomileusis. J Cataract Refract Surg. 2008;34:1720–1726

PII: S0886-3350(09)01123-7

doi: 10.1016/j.jcrs.2009.10.030

Journal of Cataract & Refractive Surgery
Volume 36, Issue 3 , Pages 431-436 , March 2010

Article Tools

* Image Usage & Resolution