Corneal hysteresis (CH) is a parameter which measures the viscoelastic behaviour of the cornea, indicating its biomechanical integrity1. Some clinical conditions such as keratoconus, Fuchs corneal dystrophy, high myopia, glaucoma and corneal refractive surgery, may induce changes in corneal biomechanical properties, leading to a decrease in CH2-6. Astigmatism, a refractive error related to corn...

THE increasing recognition of the importance of contact lenses in the treatment of keratoconus has led to a quite exceptional concentration of these cases in the Contact Lens Department at the Royal Westminster branch of the Moorfields, Westminster and Central Eye Hospital. It is possible that the opportunity to analyse in detail such a large series of keratoconus cases has not previously occur...

We report a second clinico-pathologic report of recurrent keratoconus in a 43-year-old white female with bilateral penetrating keratoplasties for keratoconus. She was found to have a recurrence of this condition in the right eye as manifested by increasing myopic oblique astigmatism, subepithelial and anterior stromal scarring and corneal thinning, 22 years following the initial grafting proced...

Purpose. To report a case of acute hydrops in a 10-year-old child with advanced keratoconus. Case Presentation. A ten-year-old boy diagnosed as having right eye (RE) infectious keratitis, not responding to antimicrobial therapy, was referred to our hospital. The diagnosis of infectious keratitis was established one month prior to his presentation following an episode of acute corneal whitening,...

Keratoconus is a progressive corneal thinning, ectatic condition, which affects vision. Recent advances in corneal topography measurements has helped advance proper diagnosis of this condition and increased research and clinical interests in the disease etiopathogenesis. Considerable progress has been achieved in understanding the progression of the disease and tear fluid has played a major rol...

PURPOSE To describe a case of keratoconus and Fuchs' corneal endothelial dystrophy in the left eye with no corneal disease in the right eye. METHODS A 64-year-old woman presented with visual impairment in her left eye; computer-assisted topographic analysis and specular microscopy were performed in both eyes and left cornea was histopathologically examined. RESULTS Keratoconus was diagnosed...

Keratoconus is characterized by progressive corneal protrusion and thinning, leading to irregular astigmatism and impairment in visual function. The etiology and pathogenesis of the condition are not fully understood. However, significant strides have been made in early clinical detection of the disease, as well as towards providing optimal optical and surgical correction for improving the qual...

Purpose: To evaluate the long-term results of Ferrara rings intracorneal ring segments for the treatment of keratoconus. Setting: Private medical center, Ophthalmology Department, Hadassah Optimal Medical Center, Haifa, Israel. The National Center for the Treatment of Keratoconus Haifa, Israel. Materials and methods: Retrospective review of data for patients implanted with Ferrara intrastromal ...

Keratoconus is a slowly progressive, non-inflammatory disorder of the eye characterized by thinning and protrusion of the cornea. Typically diagnosed in the patient's adolescent years, keratoconus may lead to substantial distortion of vision primarily from irregular astigmatism and myopia, and secondarily from corneal scarring. The classic histopathologic features include breaks in Bowman's lay...

PURPOSE To investigate the potential impact of cone eccentricity on visual outcomes after Keraring (Mediphacos, Belo Horizonte, Brazil) implantation for keratoconus. METHODS Nineteen eyes from 19 patients with keratoconus who underwent femtosecond laser-assisted Keraring implantation for keratoconus were included in this retrospective study. Uncorrected visual acuity (UDVA), corrected visual ...