PURPOSE The safety and efficacy of corneal collagen cross-linking (CXL) and topography-guided photorefractive keratectomy (PRK) using a different sequence and timing were evaluated in consecutive keratoconus cases. METHODS This study included a total of 325 eyes with keratoconus. Eyes were divided into two groups. The first group (n=127 eyes) underwent CXL with subsequent topography-guided PR...

PURPOSE To analyze the safety and efficacy of standard corneal collagen cross-linking (CXL) in advanced cases of progressive keratoconus after 4 years of follow-up. METHODS A retrospective case series of patients with advanced progressive keratoconus (stages 3 and 4 of Amsler-Krumeich classification) underwent standard CXL treatment. The parameters examined were changes in uncorrected visual ...

the aim of this study was to evaluate the effect of mechanical implantation of myoring in keratoconic patients with high myopia. this study comprised 32 eyes of 32 keratoconic patients (14 males, 18 females) with high myopia. all underwent myoring (dioptex gmbh) implantation using mechanical dissection with a pocket maker microkeratome and completed three months of follow-up. the main outcome m...

PURPOSE To examine ocular lens parameters and structural changes to elucidate mechanisms underlying the myopic shift and cataract-related changes that occur in some patients during hyperbaric oxygen (HBO) therapy. METHODS Scheimpflug images (Nidek EAS-1000) of the crystalline lens, measurements of scattered light, objective refraction, keratometry, tonometry, and axial length of the eye were ...

purpose: to assess the stability of visual and refractive outcomes that was compared between three and 12 months after myoring implantation in moderate and severe keratoconus methods: this study included 54 eyes of 50 patients (27 males and 23 females) with stage ii and iii keratoconus who underwent myoring (dioptex gmbh) implantation. clinical outcomes including uncorrected distance visual acu...

The aim of this study was to evaluate the effect of the mechanical implantation of a MyoRing in patients with severe keratoconus and high myopia. The study involved 32 eyes of 32 patients (14 men and 18 women; mean age: 29.6 ± 6.7; age range: 20 - 44). The patients underwent MyoRing implantation with mechanical dissection using a Pocket Maker microkeratome, and outcomes were assessedat3 months ...

To study the keratometry of Indian pediatric eyes, effect speculum on reading, concordance hand held and automated unilateral bilateral cataract IOL power calculation. This was conducted as a cross- sectional observational 101 eyes children in age range 41 post-conceptional weeks to 144 months. All cooperative patients were subject followed by using keratometer with without speculum. Hand docum...

BACKGROUND Results of ocular biometric measurements in retinal vein occlusion (RVO) eyes are still inconclusive and controversial. The aim of this study was to evaluate the association between ocular axial length (AL), vitreous chamber depth (VCD) and both central (CRVO) and branch retinal vein occlusions (BRVO) using optical low coherence reflectometry (OLCR). METHODS Both eyes of 37 patient...

PURPOSE To assess the biomechanical and keratometric effects and the safety of treatment of progressive keratoconus with UV-riboflavin collagen cross-linking (CXL). METHODS This is a prospective clinical controlled study. Fourteen eyes of 14 patients with progressive keratoconus were treated with CXL after corneal deepithelization. Patients were assessed preoperatively, at week 1 and at month...

In this prospective, unmasked, randomized controlled trial, WittigSilva et al. found that corneal collagen cross-linking leads to sustained improvements in keratometry values and visual acuity in eyes with progressive keratoconus. The authors enrolled 100 patients with keratoconus and evenly divided them into treatment and control groups. The primary outcome was the maximum simulated keratometr...