You searched for "astigmatism"

212 results found

Piloting myopic control glasses effects on axial length under mesopic conditions

This study aimed to pilot whether axial length reduces when being treated with myopia control glasses in mesopic conditions. Participants were required to have single-vision glasses with spherical equivalent between -1.00 and -5.00 dioptres, astigmatism less than -1.00 dioptre, a...

Complex Biometry Clinics: a new service development

In this article we describe a new local service development, the ‘Complex Biometry Clinic’ at Leicester Royal Infirmary. Retrospective data analysis of patients referred between October 2012 and October 2013 was performed. The aim was to provide a one-stop service...

Principles of contact lens fitting in keratoconus

Keratoconus is an ectatic condition of the cornea characterised by progressive conical distortion with irregular astigmatism, myopia and apical protrusion. Most cases progress slowly resulting in varying degrees of myopic astigmatism. Management of keratoconus includes spectacles, soft contact lenses, a...

Intraocular lens technology to deliver enhanced optical performance after cataract refractive surgery

Modern cataract surgery aims to provide patients with the best possible visual outcome with the least dependence on spectacles and minimal or no complications and to treat both cataract and refractive errors with a single procedure. Phacoemulsification is the standard...

Comparison of vision screening programmes

The purpose was to examine the treatment that children underwent as a result of being identified with reduced vision at school screening. The level of improvement in vision was identified and the time taken to achieve maximum visual acuity. There...

Biotech Healthcare transforms lives through its CSR initiative, 'I See You'

Biotech Healthcare, one of the fastest growing companies in the ophthalmic industry, continues to make a meaningful impact with its transformative Corporate Social Responsibility (CSR) initiative, 'I See You.' This program reflects the company’s mission of ‘Access to Innovation’ by...

Corneal Topography in Clinical Practice (Pentacam System)

This book is based upon one device, the Pentacam, developed by OCULUS, and is primarily aimed at those who wish to familiarise themselves with the Pentacam system and need a text to complement the instrument operations manual. It is laid...

Newer generation IOL platforms designed for high-quality visual performance after cataract surgery

Expanding intraocular lens (IOL) capabilities provide broadening options, ranging from next-generation monofocal IOLs for basic cataract surgery, to specialised premium IOLs for lens-based presbyopia correction and astigmatism correction at the time of cataract surgery. Rod McNeil considers several newer alternative...

Fellow eye comparison of DMEK and PKP

This retrospective analysis of 11 patients who underwent penetrating keratoplasty (PKP) in their first eye followed by descemet membrane endothelial keratoplasty (DMEK) in their second eye studied visual and refractive outcomes. Intra and postoperative complications were compared and a subjective...

Does the length of the school day have a role in age of myopia onset?

The authors prospectively collected the refractive data of myopic adults attending recruiting dispensing optician or ophthalmologist sites. Participants were recruited consecutively, giving verbal informed consent. Sites included a mix of urban and rural areas across eight sites. The following data...

Charles Bonnet Syndrome emerges from the shadows

There has been a ground-breaking response to the online Charles Bonnet Syndrome Patient Information event on 16 November.

The management of possibly progressive pterygium

A 43-year-old Sudanese male patient is referred by his GP with a fleshy lesion encroaching the nasal cornea for the last six months. History Make note of: risk factors, i.e. UV exposure and ocular irritation - history of living in...