You searched for "Refractive"

1531 results found

VEGF and axial length (RVU)

The authors of this paper set out to examine whether the concentrations of VEGF in the vitreous were associated with refractive error and axial length in eyes without retinal disease, except of macular holes or epiretinal membranes. A vitreous sample...

Comparison of vision screeners

The primary purpose of this study was to calibrate the various paediatric photoscreeners over a range of contact lens induced hyperopic and astigmatic anisometropia using the American Association of Paediatric Ophthalmology and Strabismus (AAPOS) criteria for anisometropic or axial astigmatism....

Screening with PlusoptiX

This study compared the PlusoptiX A12 to a comprehensive ophthalmic investigation. This was a three-month study of 219 (438 eyes) subjects with a mean age of 72 months. The A12 referred 101 of 219 (46%) patients for potential amblyopia. Ophthalmic...

Eye Diseases in Hot Climates (Fifth Edition)

This book focuses on diseases and associated issues causing visual impairment and blindness in the low socio-economically developed parts of the world. The majority of these are preventable and treatable. The earlier chapters cover basic anatomy and physiology, pharmacology and...

Surgical treatment of high myopia

Although several excellent modalities are available for correcting high myopia, the surgical treatment of this condition remains one of the biggest challenges for refractive surgeons; this group of patients is often very dependent on contact lenses. If these patients become...

Are we short-sighted about myopia?

Worldwide prevalence of myopia has increased rapidly in recent years and has now reached epidemic levels, particularly in South-East Asia where prevalence is around 80% [1-4]. Myopia prevalence is also increasing in the United States and Europe where it is...

A missed intraocular telescope – an opportunity to re-focus the evidence

Intraocular telescopes allow magnification of the image so that it would be projected into a larger area of the macula, this makes the central defect caused by dry age-related macular degeneration (AMD) smaller. The most common approach is a Galilean...

Management of congenital NLD obstruction

The authors evaluated changes in management of congenital nasolacrimal duct obstruction (CNLDO) by surveying 1495 Association for Paediatric Ophthalmology & Strabismus (AAPOS) members. The survey consisted of 21 multiple choice questions with anonymised return. Responses were received from 127 members...

Rotational stability of angle supported phakic IOL

The authors evaluate 50 eyes of 28 patients that underwent an angle fixated phakic intraocular lens (IOL) implantation (Acrysof Cachet). All eyes had moderate to high myopia (-5.25 to-19.63 dioptres) and IOL sizing was performed as per the manufacturer’s recommendation....

Leber’s hereditary optic neuropathy: from lab to clinic

Leber’s hereditary optic neuropathy (LHON) was the first clinically described mitochondrial disorder (1871). This article reviews the pathophysiology and clinical features of LHON with a focus on translational research. G11778A is currently the most common mutation worldwide and is associated...

Development of testing protocols for high and low contrast visual acuity

Dysfunction of the afferent visual system, characterised by impairments in high-contrast visual acuity (HCVA) and low-contrast visual acuity (LCVA) have been demonstrated in some neurological conditions such as multiple sclerosis and Parkinson’s disease. HCVA and LCVA are also potential quantitative...

Topography-guided photorefractive keratectomy in the treatment of corneal scarring

This study reports the outcome of topography-guided photorefractive keratectomy (TG-PRK) in the treatment of patients with corneal scarring. A retrospective case series including six eyes of six patients with corneal scarring and irregular astigmatism who underwent topography guided PRK. The...