Purpose The prevalence of myopia is increasing around the world, stimulating interest in
methods to slow its progression. The primary justification for slowing myopia progression is …

Orthokeratology (ortho-k) is the process of deliberately resha** the anterior cornea by
utilising specialty contact lenses to temporarily and reversibly reduce refractive error after …

Several lifestyle choices made by contact lens wearers can have adverse consequences on
ocular health. These include being non-adherent to contact lens care, slee** in lenses, ill …

Bifocal and multifocal optical devices are intended to get images into focus from objects
placed at different distances from the observer. Spectacles, contact lenses, and intraocular …

Contact lenses (CLs) are prone to adhesion and invasion by pollutants and pathogenic
bacteria, leading to infection and inflammatory diseases. However, the functionalization of …

The refractive index of the cornea and overlying tear film are key factors affecting refraction
and overall optical properties of the eye. A figure of 1.376 is often quoted for the refractive …

Overnight orthokeratology lenses are approved in countries all over the world for the
temporary reduction in myopia, and recently, one lens design has received regulatory …

The disease of myopia has come into focus as a worldwide public health concern. Myopia
has shown increasing prevalence, incidence at earlier age and progression to a higher …

Objectives: To estimate the incidence of microbial keratitis in children wearing overnight
orthokeratology lenses in Moscow, Russia. Methods: To estimate the number of children …

Purpose To determine whether orthokeratology (OK) induced treatment zone (TZ) diameter
can be reduced by altering OK lens design, and if so the impact of modifying TZ diameter on …