purpose: ‏to determine the visual and anatomic outcomes of epikeratoplasty in 7 eyes of 6 patients with keratoglobus. method: in a retrospective interventional case series, seven eyes of six patients with keratoglaobus (kgb) aged 5 to 39 years underwent epikeratoplasty. three patients (3 eyes) had blue sclera, hypermobile joints, and consanguineous parents and 3 patients (4 eyes) had only kgb. ...

The morphological and optical features of the corneal lens and retina have been examined in the posterior large stemma of the larva of the tiger beetle (Cicindela chinensis). A cup-shaped retina was positioned 55+/-6microm beneath the posterior margin of the corneal lens, which was 479+/-20microm in diameter and 391+/-18microm in thickness (n=41). A light path through an isolated corneal lens s...

IMPORTANCE Corneal anesthesia is recalcitrant to conventional treatment and can lead to permanent visual loss. OBJECTIVE To assess the outcomes of a novel sensory reconstructive technique for the treatment of corneal anesthesia. DESIGN, SETTING, AND PARTICIPANTS This prospective study evaluating a new technique was conducted at a tertiary referral center. Four eyes in 3 patients with cornea...

PURPOSE To model incisional axis and perpendicular corneal profile pattern changes in 2.2-mm corneal incision phacoemulsification. METHODS Sixty-seven eyes of 67 patients were included in this prospective, interventional, before-after paired design study. Power vector components were obtained from keratometry (IOLMaster; Carl Zeiss Meditec, Göttingen, Germany) and topography corneal height da...

Scheimpflug cross-sectioning anterior segment imaging offers significant advantages over traditional placido based curvature analysis and ultrasound pachymetry. The accurate measurement of both the anterior and posterior corneal surfaces and the anterior and posterior lens allows for the creation of a three-dimensional reconstruction of the anterior segment. Changes on both the posterior cornea...

SEPTEMBER 2010 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 25 A stigmatism is an optical defect that may lead to shadowing, loss of contrast sensitivity, distortion, blurred vision, and ghosting. There are two types of astigmatism, regular and irregular. Irregular astigmatism is often caused by a corneal scar or scattering in the crystalline lens. It is estimated that astigmatism of more than -0...

The pertinent literature on inherited corneal diseases is reviewed in terms of the chromosomal localization and identification of the responsible genes. Disorders affecting the cornea have been mapped to human chromosome 1 (central crystalline corneal dystrophy, familial subepithelial corneal amyloidosis, early onset Fuchs dystrophy, posterior polymorphous corneal dystrophy), chromosome 4 (Biet...