You searched for "Refraction"

2379 results found

Changes in axial length and refraction in young Chinese school children

The authors aimed to assess refractive error and axial length in children aged seven to eight years (grades 1-2) starting education in South China. The study reviewed 301 students and obtained data for analysis from 291 (50.2% female). Average axial...

Cycloplegic retinoscopy refraction versus Retinomax K-Plus 5 autorefraction

In this study, the authors present their results comparing cycloplegic refraction with retinoscopy versus hand-held Retinomax K-Plus 5 autorefraction. The study included 213 children aged 0.1 to 20 years (426 eyes). Mean age was 6.2 ±4.4 years. They examined sphere,...

Birmingham Refraction Certificate Course

A one-day course run by ophthalmologists for ophthalmic trainees and doctors preparing for the refraction certificate exam. Includes tips and tricks on: retinoscopy of patients and model eyes (the model eyes used will be the same Heine eyes used in...

Self refracting – child’s play?

Uncorrected refractive error was the leading cause of vision impairment in the world in 2010. Although refractive error may be safely and effectively corrected with spectacles, lack of well-trained refractionists in settings of limited resources may be a major barrier....

AlloDerm for correction of lower lid retraction

This is a retrospective review of 95 eyes of 54 patients undergoing orbital decompression for Graves’ orbitopathy. All patients had a swinging eyelid approach across the whole of the lower lid. Thirty-six eyes also had insertion of a 0.3mm thick...

How long to wait to refract after instilling cyclo drops for children with brown irides?

This study aimed to assess the time needed for effective cycloplegia after instillation of 1% cyclopentolate drops in children with brown irides. The study recruited 161 consecutive patients aged three to 16 years. All had refraction on arrival, then instillation...

Open-field autorefraction screening

This study aimed to determine the efficacy of the Shin-Nippon NVision-K5001 autorefractometer using the open-field refractometry principle in the elimination of accommodation in children. One hundred and fourteen patients aged three to six years were recruited. After excluding ocular pathology...

Differences of the anterior segment parameters in children with Down syndrome

This cross-sectional study was designed in order to demonstrate the differences in anterior segment parameters in children with trisomy 21. This is important as it may impact on surgical planning when undertaking procedures in the anterior segment such as corneal...

Biomechanical stabilisation of ocular measurements post cataract surgery

This prospective study looks into the time duration of biomechanical stabilisation post uneventful cataract surgery in a case series of 62 consecutive eyes in patients with no ocular or systemic comorbidity. The patients were followed-up at fixed intervals of one...

ZEISS Biometry Mastery Course (6 Feb 24)

This is a one-day course which will be running on Tuesday 6 & Wednesday 7 February - attendees have the choice of either date on a first-come-first-served basis. The 'Biometry Mastery Course' is exclusively tailored for pre-assessment nurses in cataract and refractive lens exchange surgery, as well as dedicated Ophthalmic professionals. With a comprehensive curriculum encompassing eye anatomy, refraction, cataract surgery, biometry principles, best practices, formulas and IOL constants, participants will delve into the heart of biometry. Our practical workshops, featuring the IOLMaster 700, equip attendees with the key knowledge, skills and understanding to perform accurate and precise biometry and how they relate to the patient pathway.

Preventing refractive surprises by real time biometry during cataract surgery

A few months ago a retired lady presented for second eye cataract surgery. I noted on the pre-op ward round that the outcome of her first eye’s surgery looked like a refractive surprise as her spherical equivalent in that eye...