You searched for "Refraction"

2926 results found

Autophagy in lens mitochondria loss

The lens consists of a monolayer of epithelial cells that overlies fibre cells that differentiate from epithelial cells at the equator. While developing, fibre cells need mitochondria to provide energy, as they mature they lose these and other organelles to...

Surgical technique for small-angle hypertropia

In order to treat small-angle hypertropia of <5PF associated with mild / moderate upshoot in adduction, an option is to suture the inferior oblique (IO) belly to the sclera following its natural muscle direction or with anterior transposition. This study...

‘At risk’ corneas are more easily identified with SCORE

Risk assessment of post-LASIK corneal ectasia in refractive surgery patients is now a more exact, objective, evaluation thanks to the work of Heidelberg Engineering and a leading research partner in Paris.

Diffuse lamellar keratitis

This study group reviewed cytokine- and chemokine-mediated mechanisms of diffuse lamellar keratitis (DLK) after lamellar corneal surgical procedures. DLK can occur early or late (months to decades) after all lamellar corneal surgeries, including laser in situ keratomileusis, small incision lenticule...

Head-mounted display impact

This study investigated the clinical effects of the head-mounted display on the normal eye to obtain reliable safety data in adolescents. The study included 60 volunteers aged on average 14.7 ±1.3 years (13-18) of which 59% were female. Mean best...

Patient safety – is this achieved in optometry with CET?

Collecting points and ticking boxes – as we come to the end of another three year cycle of continuing education and training (CET), the rush to ensure that everything has been completed on the myGOC (General Optical Council) dashboard feels...

Prism adaptation test in acquired non-accommodative esotropia

This study investigated factors related to the increase in prism adapted angle in patients with acquired non-accommodative comitant esotropia (ANAET) who had strabismus surgery based on the results of a short prism adaptation test (PAT) and evaluated their outcomes. Short...

Management of traumatic corneal perforations with anterior lamellar techniques: The mini-DSAEK

The authors present the first case report in which a mini (reduced diameter) Descemet’s stripping automated endothelial keratoplasty (mini-DSAEK) has been used to manage a traumatic corneal perforation. A 69-year-old male presented with 6/36 best spectacle-corrected visual acuity (BSCVA) and...

Breakthroughs in the genetics of angle-closure glaucoma

Angle closure glaucoma (ACG) is not widely known to be a familial condition, yet the recent explosion of genetic data and large scale genome wide investigations have confirmed at least 13 genetic loci associated with ACG [1], and provided some...

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....

Outcomes of Hughes flap in lower eyelid reconstruction

One hundred and 22 consecutive patients who underwent tarsoconjunctival advancement flap surgery for lower eyelid defects were part of this study. Ninety percent of them had lesion excision using Mohs micrographic surgery. Eighty percent of these were for basal cell...

A tarso-conjunctival flap for paralytic ectropion

This is a review of 110 patients with paralytic ectropion who underwent a lateral tarso-conjunctival flap procedure. The technique involves fashioning a 4-8mm wide lateral tarso-conjunctival flap in a similar way to a lateral Hughes flap. This is then sutured...