Keratoconus has a common association with atopic conditions. Most keratoconus patients rub their eyes excessively. Eye-rubbing is considered the dominant aetiological factor in two-thirds of patients with keratoconus who progress to contact lens wear. A classification of keratoconus based on the dominant aetiological factors is proposed. No significant psychoneurotic factor was found in the ker...

INTRODUCTION Keratoconus is a progressive and non-inflammatory ectasia of the cornea, mostly bilateral causing low vision because of the irregular astigmatism. The influence of the disease on quality of life is dependent on limiting factors and personality type. PURPOSE To verify quality of life and personality type of the person with keratoconus. METHODS Sixty-eight individuals with kerato...

Keratoconus has been recognized and investigated for more than 150 years (1). Historically, ophthalmologists have described keratoconus as a bilateral, progressive, non-inflammatory disorder of the cornea that is associated with corneal steepening and thinning (1,2). The Global Panel on Keratoconus and Ectatic Diseases recently stated that ‘abnormal posterior ectasia, abnormal corneal thickness...

Objectives: Keratoconus is characterized by the abnormal cornea structure and it manifested changes in anterior segment parameters responsible for ocular high order spherical aberrations. The aim of study to investigate horizontal white diameter mesopic pupil size patients with keratoconus. Methods: medical records each participant were reviewed. measured Sirius Topography System 215 eyes 123 s...

Introduction: Keratoconus is an ectasia that results in corneal thinning in central and paracentral areas of affected corneas. This disease occurs most frequently in young males, underlying a potential role of sex hormones in its pathogenesis. By examining the expression of sex hormone receptors, this study aimed to reveal potential roles of the sex hormone receptors in keratoconus pathogenesis...

K eratoconus (OMIM148300) is a bilateral, non-inflammatory, slowly progressive, corneal ectasia that is a major cause of corneal transplant. Characteristically, the cornea becomes thin and conical, with myopia and irregular astigmatism that leads to vision impairment. The incidence of keratoconus is between 50 and 230 per 100 000, with remarkable differences between ethnic groups. Although the ...

Sixty-seven patients with keratoconus were classified according to atopic status. Keratoconus patients with and without atopy did not differ significantly with regard to sex, age of onset, or rate of keratoplasty, but patients with very high IgE levels were more prone to graft rejection. Atopy was less common in patients with unilateral keratoconus, and keratoconus occurred more frequently on t...