Intacs, intrastromal corneal rings are widely used to reduce myopia, astigmatism, keratometry readings and high order aberrations in patients suffering from keratoconus, almost 15 years have passed from the first procedure which was performed in the eye of a patient with unsatisfactory visual acuity and contact lenses intolerance. Many publications including book chapters, retrospective studies...

Keratoconus is a common corneal ectasia that leads to progressive visual impairment. Numerous studies have shown abnormal protein expression patterns in keratoconic corneas. However, the specific mechanisms causing this disease remain ambiguous. This review aims to provide an update on morphological studies of the keratoconic cornea, relate these early studies with current findings from proteom...

Purpose: To assess the outcomes of the insertion of the MyoRing (DIOPTEX, GMBH, Linz, Austria) by applying the Femtosecond Laser Technology (FLT) method in eyes that have keratoconus problem. Methods: A prospective, nonrandomized, clinical examination was managed. 27 eyes of 15 subjects with stable keratoconus (6 females and 9 males), with lifetimes differing from 14 to 49 years were involved. ...

PURPOSE The etiology of keratoconus (KC) and the factors governing its progression are not well understood. It has been suggested that this disease might be caused by biochemical alterations in the cornea; changes in the expression profiles of human aqueous humor (hAH) proteins have been observed in some diseases. To gain a new insight into the molecular mechanisms of KC pathology, we examined ...

AIM To compare the anterior segment measurements obtained by rotating Scheimpflug camera (Pentacam) and Scanning-slit topography (Orbscan IIz) in keratoconic eyes. METHODS A total of 121 patients, 71 males (58.7%) and 50 females (41.3%) (214 eyes) with the diagnosis of keratoconus (KC) were enrolled in this study. Following diagnosis of KC by slit-lamp biomicroscopic examination, central corn...

Purpose: Keratoconus results in image quality loss one or both eyes due to increased corneal distortion. This study quantified the depth of monocular suppression keratoconus this using a binocular contrast rivalry paradigm. Methods: Contrast was induced 50 keratoconic cases (11–31 years) and 12 age-matched controls by dichoptically viewing orthogonal Gabor patches 5 cycles per degree (cpd) 1...

purpose: to evaluate the effect of posterior residual stroma on visual function after unsuccessful anwar's deep anterior lamellar keratoplasty (dalk). methoods: in this parallel historical cohort, visual acuity and refractive status were evaluated after descemetic dalk (group 1) and compared with those of pre-descemetic dalk (group 2). results: one hundred and ten keratoconic eyes were enr...

PURPOSE To report the outcomes after the implantation of intrastromal corneal ring segments (KERARING) aided by femtosecond laser for the correction of keratoconus. DESIGN Prospective consecutive interventional study. PARTICIPANTS Twenty-one eyes of 16 consecutive keratoconic patients with mean age 32+/-10.2 years. Forty-five percent were keratoconus grade I, 20% grade II, 15% grade III, an...