You searched for "requirements"

1350 results found

Under pressure: intraocular pressure and bariatric surgery

Obesity in the general patient population is increasing. The National Institute for Health and Care Excellence recommends bariatric surgery with body-mass index (BMI) of over 40, or between 35-40 and other significant disease that could be improved with weight loss....

Choroidal vascularity in NAION

The authors present a cross-sectional, non-interventional study of healthy volunteers and those with non-arteritic anterior ischaemic optic neuropathy (NAION) recruited over a six-month period at a single site. NAION is the most common cause of acute optic neuropathy over the...

Fusional vergence measurement

This paper reports a systematic review to address two objectives: 1, to compare the normative values of tests measuring fusional vergence; 2, to investigate sources of heterogeneity of prism accuracy. The review was conducted according to PRISMA guidelines with a...

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...

Accuracy of intraocular lens power calculations in paediatric eyes

A study comparing the accuracy of the SRK II, SRK/T, Hoffer Q, Holladay 1, T2 and Super formula in predictive refractive outcomes in children undergoing primary IOL insertion into the capsular bag following cataract surgery. A total of 377 eyes...

Variability and reliability of Lea grating paddles

The authors aimed to determine interobserver variability and reliability of Lea grating paddles when assessing grating acuity in pre and non-verbal children. This was a prospective study of 31 consecutive patients; 29 pre-verbal <36 months and two with delayed speech...

V pattern surgery

Inferior oblique (IO) muscle belly transposition involves fixing the belly of the IO to the sclera at 5mm posterior to the temporal insertion of the inferior rectus (IR). This study reports the clinical outcomes of bilateral surgery to treat V...

Objective vs. subjective torsion measures

This study aimed to explore the relationship between subjective and objective torsion in normal individuals with no manifest strabismus. The study included 118 eyes of 59 normal people aged >15 years using Heidelberg OCT and the Torsionometer. There were 27...

Spot screen versus cycloplegic refraction

This study compared the spherical, cylindrical and spherical equivalent values obtained by the Spot screener before and after induction of cycloplegia with the values of cycloplegic refraction to explore the application value of the Spot screener in refractive error screening...

Divergence insufficiency esotropia is increasingly more common and new theory of aetiology

The authors present a retrospective case review of acquired esotropia. An internal database was reviewed for cases of esotropia and divergence insufficiency between 1978 and 2018 and seen by a single ophthalmologist. Patients with initial presentation of esotropia onset after...

Disc-fovea angle measurements for objective cyclotorsion review

The author measured the disc-fovea angle (DFA) in 249 healthy people (81 male, 168 female) as part of a retrospective study of 44 to 70-year-old adults. These were grouped as (1) aged 44 / 45 years, (2) aged 59-70 years,...

Contrast sensitivity comparisons for Pelli Robson, Hiding Heidi and Double Happy tests

The authors aimed to compare contrast thresholds and measure agreement across current paediatric assessment of contrast sensitivity with Hiding Heidi and Double Happy contrast sensitivity tests vs. the gold-standard Pelli Robson chart. Reduced contrast levels were similar under different light...