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LETTER TO EDITOR
Year : 2011  |  Volume : 59  |  Issue : 2  |  Page : 173

Safety and efficacy of Intacs in Indian eyes with keratoconus: An initial report


Head, Cornea Services, Vasan Eye Care Hospitals, Chennai, India

Date of Web Publication23-Feb-2011

Correspondence Address:
Anand Parthasarathy
5/100, Raja Nagar, Neelangarai, Chennai 600 041
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.77036

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How to cite this article:
Parthasarathy A. Safety and efficacy of Intacs in Indian eyes with keratoconus: An initial report. Indian J Ophthalmol 2011;59:173

How to cite this URL:
Parthasarathy A. Safety and efficacy of Intacs in Indian eyes with keratoconus: An initial report. Indian J Ophthalmol [serial online] 2011 [cited 2020 Jun 1];59:173. Available from: http://www.ijo.in/text.asp?2011/59/2/173/77036

Dear Editor,

I read with interest the article by Shetty et al. [1] on the safety and efficacy of Intacs. The authors need to be commended on reporting the results of the procedure they carried out on Indian eyes. The authors would, however, do well to shed some light on some aspects of their results; the mean refractive spherical equivalent (MRSE) drop from -5.48 ± 3.67 to -1.43 ± 2.74 and then an increase to -5.23 ± 3.79 again is surprising. Why did the variation take place and is there a possible explanation for this? Second, in the preoperative examination, was the presence of vernal keratoconjunctivitis specifically looked for, as we know that there is an association between the two; [2] in addition postoperatively these patients need to be counseled about avoiding rubbing their eyes, as it could lead to progression of keratoconus and even extrusion of the implant. Also how many of the patients in the case series had collagen cross-linking prior to the Intacs placements? There are now multiple studies confirming a possible synergistic effect of the two treatments. [3],[4],[5]

 
  References Top

1.
Shetty R, Narayana KM, Mathew K, Anand D, Mhaske P, Shetty BK. Safety and efficacy of Intacs in Indian eyes with keratoconus: An initial report. Indian J Ophthalmol 2009;57:115-9.  Back to cited text no. 1
[PUBMED]  Medknow Journal  
2.
Totan Y, Hepºen IF, Cekiç O, Gündüz A, Aydin E. Incidence of keratoconus in subjects with vernal keratoconjunctivitis: A videokeratographic study. Ophthalmology 2001;108:824-7  Back to cited text no. 2
    
3.
Kanellopoulos AJ. Comparison of sequential vs same-day simultaneous collagen cross-linking and topography-guided PRK for treatment of keratoconus. J Refract Surg 2009;25:S812-8  Back to cited text no. 3
    
4.
Kamburoglu G, Ertan A. Intacs implantation with sequential collagen cross-linking treatment in postoperative LASIK ectasia. J Refract Surg 2008;24:S726-9.  Back to cited text no. 4
    
5.
Chan CC, Sharma M, Wachler BS. Effect of inferior-segment Intacs with and without C3-R on keratoconus. J Cataract Refract Surg 2007;33:75-80.  Back to cited text no. 5
    



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1 Authoręs reply
Shetty, R.
Indian Journal of Ophthalmology. 2011; 59(2): 173
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