You searched for "Refraction"

2322 results found

An unusual case of silicone oil in the anterior chamber simulating intraocular implant

Silicone oil internal tamponade has been used for over 50 years, even prior to pars plana vitrectomy [1].Over a course of time silicone oil may migrate to the anterior chamber through the pupil. This may disperse in the form of...

Orbital filler for enophthalmos in Parry-Romberg syndrome

This is a retrospective review of three patients with enophthalmos in sighted eyes secondary to Parry-Romberg syndrome. The patients were all female, aged between 24 and 54. All three patients had 4mm of relative enophthalmos prior to treatment. They each...

Piggyback toric IOLs in complex cases

This study evaluates the outcome of toric sulcus fixated lenses (MS 614/714 TPB (Human Optics, Germany) in 21 eyes with high astigmatism. The cases included previous penetrating keratoplasty (n=15), post cataract surgery astigmatism (n=3), rotation of in-the-bag toric IOL (n=1),...

Choice of cycloplegia regime

The purpose of this randomised control trial (RCT) was primarily to compare the refractive outcome of atropine 0.5% (A) instilled twice daily at home 2.5 days before measurement versus two drops of 1% cyclopentolate (CC) in one eye versus one...

Is laser refractive surgery safe for patients taking isotretinoin?

This multicentre, retrospective, interventional case series assesses the outcomes of laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) in 113 patients taking isotretinoin between January 2003 and September 2017. Isotretinoin is contraindicated for LASIK and PRK and patients are...

Combined PRK and CXL in keratoconus

This study aimed to investigate the results after photorefractive keratectomy (PRK) followed immediately by standard 30-minute corneal cross-linking (CXL) for keratoconus. This retrospective study included 26 eyes of 16 patients with keratoconus. Uncorrected distance visual acuity (UDVA), corrected distance visual...

Risk factors for amblyopia

The author presents a meta-analysis of published data to estimate American Association for Pediatric Ophthalmology and Strabismus (AAPOS) prevalence data for amblyopia risk factors. He extracted data from major paediatric comprehensive eye examination studies for children aged two to five...

Bleb-related changes in upper lid position

This is a review of five patients with upper lid ptosis or lid retraction secondary to large filtering blebs post-trabeculectomy. The authors review each case and apply a model to analyse the separate forces acting on the upper lid to...

Refractionist’s shoulder?

After hearing the letter-box, I walked to the front door and stooped down to collect my latest edition of Eye News. I winced. Still, at least it would give me something to pass the time on this, my first day...

A case presentation of morning glory disc anomaly and peripapillary staphyloma

The purpose of this paper is to present a case of an 18-month-old girl initially presenting with strabismus. Fixation of the affected eye was intermittent with a relative afferent pupillary defect. A fundus photography of the affected left eye showed...

Paediatric ptosis

Manoj Parulekar and colleagues provide a comprehensive overview of the diagnosis, assessment and management of childhood ptosis. Blepharoptosis (commonly referred to as ptosis – Greek, πτῶσις, ‘to fall’) is a condition where the upper eyelid is in an abnormally low...

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...