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Flap replacement surgery for management of post-LASIK ectasia
  1. J S Titiyal1,
  2. T Agarwal1,
  3. V Jhanji2,
  4. N Sharma1
  1. 1Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
  2. 2Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
  1. Correspondence to Dr Namrata Sharma, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, 474, RP Centre for Ophthalmic Sciences, All India Institute for Medical Sciences, Ansari Nagar, New Delhi 110029, India; namrata.sharma{at}gmail.com

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The treatment options for post–laser-assisted in situ keratomileusis (LASIK) ectasia include contact lens fitting,1 intracorneal rings,2 collagen cross linking,3 deep anterior lamellar keratoplasty4 and penetrating keratoplasty. We describe a surgical technique for management of post-LASIK ectasia using lamellar corneal surgery.

Case 1

A 28-year-old woman presented with progressive diminution of vision in her left eye since 4 years. The uncorrected distance visual acuity was 20/40 oculus dexter (OD) and 20/200 oculus sinister (OS), and best contact lens corrected visual acuity (BCLCVA) was 20/40 OD and 20/120 OS. The cornea in the left eye showed ectasia with thinning in the inferior part. She underwent bilateral LASIK 9 years ago. The diameter of the LASIK flap was 8.0 mm in both eyes (table 1). Videokeratographic (VKG) readings were 44.87 at 144 degrees/42.12 at 54 degrees in the right eye and 59.25 at 10 degrees/43.00 at 106 degrees in the left eye.

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Table 1

Preoperative and postoperative (12 months) characteristics of the patients who underwent the …

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