You searched for "Refraction"

2873 results found

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...

Eyecare education in times of COVID-19

A collaboration between the German Committee for the Prevention of Blindness (DKVB), Rukwa regional government in Tanzania and the University of St Andrews Global Health Team successfully delivered a hybrid teaching programme for ophthalmic nurses in Sumbawanga, south west Tanzania,...

Use of botulinum toxin A in the treatment of intermittent exotropia

In this prospective cohort study, the authors aimed to evaluate the efficiency of botulinum toxin A (BTA) injection in the treatment of intermittent exotropia (IXT) and examine factors affecting treatment outcomes. Seventy-four patients diagnosed with any type of IXT were...

The future of binocular viewing systems?

I recently had the pleasure to visit Vision Engineering’s headquarters and manufacturing facility in Woking, UK. Vision Engineering have built an international reputation for engineering microscopes that provide 3D visualisation without the use of traditional optical eyepieces. Although the company...

What's trending Apr/May 2019

A round-up of the eye-related hot topics that have been trending on social media over the last few weeks. #JessicaStarr #suicide This Detroit meteorologist committed suicide in December 2018 following SMILE corrective laser refractive surgery back in October 2018. Small...

Outcomes with small aperture IOLs

This study aimed to compare the clinical outcomes following the implantation of an extended depth of focus small-aperture intraocular lens (IOL) (IC-8; AcuFocus, Irvine, CA) for presbyopia correction when implanted monocularly or binocularly. Visual outcomes, defocus curve, patient satisfaction, and...

Microtropia as an amblyopia indicator

This study was undertaken to determine if microtropia with identity (straight eye anisometropia) is a reliable indicator of amblyopia following optical correction. This was a retrospective review of 532 children aged four to five years. After two months of glasses...

Clinical outcomes of a supplementary sulcus IOL

In this retrospective study, the authors examined 31 eyes of 20 patients who had received a supplementary trifocal sulcus IOL in addition to a ‘bag-in-the-lens’ IOL. Implantation of a ‘bag-in-the-lens’ IOL requires the creation of anterior and posterior capsulotomies, followed...

Headaches in ophthalmology (part 2)

Ophthalmologists see a large number of patients with headaches or facial pain in the ophthalmic outpatient clinics or in emergency clinics. Over two articles, I will discuss several causes of headaches, ocular manifestations and proposed management and referral options. It...

Cornea, 2-Volume Set: Fundamentals, Diagnosis, Management and Surgery of the Cornea and Conjunctiva (4th Edition)

Originally published in 1997 as a comprehensive set of three volumes on cornea and external eye disease, this two volume edition, published at the end of 2016, offers “a complete multimedia resource, in print, online, eBook and video format”. There...

The treachery of images – making sense of OCT imaging

In 1929 Belgian surrealist Rene Magritte produced his painting La Trahison des Images. It depicted an old fashioned pipe for smoking tobacco and underneath were the words “ceci n’est pas une pipe”, this is not a pipe. You may wonder...

Development of eyecare services in Dominica: Past, present, and future

Dominica is a small island developing state in the Caribbean with a population of approximately 73,000 people [1] and has a long and proud history of developing eyecare services through international partnerships. This article will give you an outline of...