Aristophanis I Pallikaris

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It is well accepted that the accommodation system is characterized by steady-state errors in focus. The purpose of this study was to correlate these errors with changes in ocular wavefront aberration and corresponding image quality when accommodating. A wavefront analyzing system, the Complete Ophthalmic Analysis System (COAS), was used in conjunction with(More)
PURPOSE To evaluate long-term follow-up of Intacs microthin prescription inserts (Addition Technology, Inc, Fremont, California, USA) for the management of keratoconus. DESIGN A long-term (five years) retrospective, follow-up study. METHODS Seventeen eyes of 15 patients with keratoconus ages 24 to 52 years (mean age +/- standard deviation [SD], 34.0 +/-(More)
A 21-year-old woman had crosslinking for keratoconus in the right eye; the left eye was scheduled for penetrating keratoplasty. Five days postoperatively, she presented with geographic epithelial keratitis and iritis. Analysis of tear samples by polymerase chain reaction confirmed the diagnosis. The patient was treated with oral steroids and acyclovir, with(More)
PURPOSE To report the development of posterior linear stromal haze after simultaneous photorefractive keratectomy (PRK) followed by corneal collagen cross-linking (CXL). METHODS Combined simultaneous customized PRK followed by corneal collagen cross-linking was performed in 23 patients (28 eyes) with keratoconus. Corneas were examined biomicroscopically(More)
PURPOSE Individual cones were imaged in the living human eye with the Rochester adaptive optics ophthalmoscope. In all eyes, there were large differences in the reflectance of different cones, even when all the photopigment was bleached. To help understand what produces this spatial variation, the investigators explored whether it is a static or a dynamic(More)
PURPOSE To report the long-term (11-year) outcomes (stability and complications) of laser in situ keratomileusis (LASIK) in patients with high myopia. SETTING University refractive surgery center. METHODS Seven patients (4 with bilateral treatment and 3 with unilateral treatment) who had myopic LASIK and completed 11 years of follow-up were included in(More)
PURPOSE To evaluate and compare the depth of the corneal stromal demarcation line after corneal collagen cross-linking (CXL) using 2 different methods: confocal microscopy and anterior segment optical coherence tomography (AS OCT). DESIGN Prospective, comparative, interventional case series. METHODS Seventeen patients (18 eyes) with progressive(More)
PURPOSE To study the long-term results of photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) in low to moderate myopic corrections using the Pulzar Z1 system (CustomVis), a 213 nm wavelength solid-state laser. SETTING University refractive surgery center. METHODS This prospective noncomparative case series comprised 20 patients(More)
BACKGROUND Recently, instruments for the measurement of wavefront aberration in the living human eye have been widely available for clinical applications. Despite the extensive background experience on wavefront sensing for research purposes, the information derived from such instrumentation in a clinical setting should not be considered a priori precise.(More)
PURPOSE/AIM To employ corneal confocal microscopy to assess differences in the extent of corneal nerve fiber alterations between diabetic patients classed according to retinopathy status and nondiabetic patients. MATERIALS AND METHODS Two hundred seventy-eight corneas of 139 patients with type 2 diabetes mellitus and 94 corneas of 47 age-matched control(More)