Corneal ectasia is a serious complication of laser in situ keratomileusis (LASIK). We report the case of a 29-year-old man who underwent LASIK in both eyes and in whom corneal ectasia developed in the left eye 3 years after surgery. He was treated sequentially with intraocular pressure-lowering medication, intrastromal corneal ring segment (ICRS) implants, and collagen cross-linking. Vision imp...

The use of wavefront-guided algorithms for treatment has increased over the past decade with estimates that up to 50 percent of all laser in situ keratomileusis (LASIK) procedures are now performed with this approach1. Although originally intended to correct higher order aberrations, the use of wavefront-guided algorithms, particularly those with iris-registration and tracking, have been shown ...

Numerous etiologies have been suspected to lead to sterile interface keratitis after laser in situ keratomileusis. This tan interface haze with a rippled appearance has been called Sands of the Sahara. We present 2 cases in which red blood cells entered the interface after a small hemorrhage from peripheral corneal vascularization during the microkeratome pass. Although this bleeding was contro...

PURPOSE To report six cases of late onset diffuse lamellar keratitis associated with epithelial defects 2 to 12 months following uncomplicated laser in situ keratomileusis (LASIK). METHODS Retrospective case series. RESULTS The interface inflammation and epithelial defects were treated aggressively with topical corticosteroids and topical antibiotics with complete resolution over 1 to 2 wee...

Keratoconus has usually been described as bilateral but asymmetric disease. Corneal ectasia is one of the long-term complications of modern refractive surgery, especially those submitted to laser in situ keratomileusis (LASIK). We describe a patient with keratoconus in the right eye that was submitted to radial keratectomy (RK) in the left eye 19 years ago with no progression of the ectatic cor...

A thirty-nine year old man was referred to our institute due to progressive decreased visual acuity five years after bilateral Laser in situ Keratomileusis (LASIK). Topography revealed signs of post - LASIK ectasia. Patients' left eye was treated with simultaneous Topography Guided Photorefractive Keratectomy (PRK) followed by Corneal Collagen Cross Linking (CXL). Twelve months after the combin...

Greater corneal biomechanical stability has been demonstrated following photorefractive keratectomy (PRK) compared with traditional microkeratome laser-assisted in situ keratomileusis (LASIK). Thin LASIK flaps exhibit biomechanical properties similar to PRK but with the advantage of no haze formation or pain. These findings suggest that thin flaps created with consistent thickness across the co...