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A Modified Small-Incision Lenticule Intrastromal Keratoplasty (sLIKE) for the Correction of High Hyperopia: A Description of a New Surgical Technique and Comparison to Lenticule Intrastromal Keratoplasty (LIKE)

Majid Moshirfar, Tirth J Shah, Maliha Masud, Trey Fanning, Steven H Linn, Yasmyne Ronquillo, Phillip C Sr Hoopes
Medical Hypothesis, Discovery and Innovation in Ophthalmology 2018, 7 (2): 48-56
30250852
Patients with high hyperopia are generally confined to either spectacle wear or contact lenses as a primary means of refractive correction. For this patient population, the surgical corrective methods, such as hyperopic laser assisted in-situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) are imperfect options due to induction of higher-order aberrations, optical regression, and loss of best corrected distance visual acuity. Recently, there has been growing interest in lenticule implantation underneath a flap via lenticule intrastromal keratoplasty (LIKE) for high hyperopia correction (+3 diopters to +10 diopters). We instead propose a modified surgical technique (small-incision lenticule intrastromal keratoplasty, sLIKE), in which the lenticule is implanted inside an intrastromal pocket thereby causing less injury to the subbasal nerve plexus injury, less postoperative dry eye symptoms, less reduction in biomechanical strength, and lower chances for epithelial ingrowth. We provide an overview of these novel surgical techniques to treat high hyperopia, and compare the associated advantages and disadvantages. In addition, we will discuss the enhancement options and methods of optimization for both surgical techniques.

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