You searched for "Refraction"

2902 results found

Using a tumour registry to investigate optic nerve gliomas

This study is a retrospective comparative analysis. Patients with optic nerve glioma and pilocytic astrocytoma were identified through the Surveillance, Epidemiology and End Results (SEER) cancer registry covering a 42-year period using standardised codes. The following data was extracted: basic...

Early detection key to improving treatment of uveitis, a leading cause globally of vision loss

New treatment guidance has been developed to help doctors tackle uveitis — one of the leading causes of vision loss. The new clinical guidance, by a team at the University of Bristol, aims to help thousands of sufferers keep this...

Specsavers joins IAPB to advocate for better eye health

The International Agency for the Prevention of Blindness (IAPB) proudly welcomes Specsavers as a pivotal new member, joining the global alliance for the eye health sector in the fight against avoidable sight loss. "For more than four decades, Specsavers has...

OCTA and pigment epithelium detachments

Yannuzzi et al. report on their study aiming to evaluate the ability of optical coherence tomography angiography (OCTA) to differentiate vascularised from nonvascularised pigment epithelium detachments (PEDs) using conventional imaging techniques, including fundus fluorescein angiography (FFA) and indocyanine green (ICG),...

Screening outcomes for Syrian refugee children

This study compared two commonly used photoscreeners in a Syrian refugee camp in Jordan to better understand what types of technology would function best in a low-resource setting. The children in this study were assessed with the PEEK acuity application...

What's trending Oct/Nov 2019

#probeyeotic #eyeballbugs #microbiome The human microbiome usually conjures up images of the gastrointestinal tract and yoghurt containing good bacteria. However, research suggests that the ocular mucosa is home to a unique microbe collection, with important immunological functional properties [1]. This...

Measuring cyclotorsion

The aim of this study was to investigate if different methods of measuring cyclotorsion (synoptophore, KM screen test and single Maddox rod test) produce the same results and if these values are repeatable in adult patients. For the synoptophore, the...

Supranuclear palsy

This paper reports the results of surgery for supranuclear monocular elevation deficiency. Contralateral superior rectus maximal recession was undertaken without interfering with the superior oblique tendon position, transection of the superior oblique to the superior rectus frenulum and directly suturing...

Static subjective visual vertical (SVV) in the normal visual system

Graviception is the perception of a persons’ orientation relative to gravitational force. This can be measured by means of subjective verticals, which can be divided into three tests: subjective visual vertical (SVV), subjective postural vertical (SPV) and subjective haptic vertical...

IXT control vs. binocular summation

The purpose of this study was to evaluate the relationship of BS scores with other current markers used for evaluating the control in preoperative intermittent exotropia (IXT) patients. Data was collected on stereoacuity, angle of deviation, Newcastle control score (NCS),...

N-T asymmetry in tracking eye movements

The current study aimed to quantify and compare the visual tracking responses of two sensory induced strabismic juvenile monkeys during monocular smooth pursuit, ocular following response and optokinetic nystagmus (OKN). Monkey 1 had esotropia and monkey 2 had exotropia. Both...

Postop improved fusion and stereopsis in IDEX

This study aimed to evaluate changes in binocular visual function in patients with different ages before and after surgery to explore the optimal timing of intermittent exotropia surgery. The study comprised 28 females and 25 males. Fifty-three patients were split...