You searched for "Lens"

1333 results found

Modified technique in place of ultrasound biomicroscopy

The authors describe a modified immersion B-scan ultrasonography that includes a standard B scan probe of 10MHz, a surgical glove and sterile saline to fill a finger of the surgical glove – tied off to create the desired immersion standoff...

Cataract progression after Nd-YAG laser iridotomy in primary angle-closure suspect eyes

A total of 889 of eligible bilateral primary angle-closure suspect (PACS) patients were recruited from the Zhongshan Angle Closure Prevention Trial. One randomly selected eye received laser peripheral iridotomy (LPI), while the fellow remained untreated. Cataract was graded by the...

Large vs. small posterior capsulotomy size and visual angle opacification rates

The purpose of this study was to assess the relationship between posterior capsulotomy size and significant visual angle opacification (VAO) in congenital and developmental cataract. This was a retrospective case control of children aged under seven years of age over...

A novel parameter for angle closure

This is a population cross-sectional study of 464 eyes that underwent swept-source optical coherence tomography (SSOCT) imaging in the dark. Eight out of 128 cross-sectional images were selected for analysis. Matlab was used to measure the iridolenticular contact area (ILCA),...

Long-term outcomes after acute primary angle closure

This is a retrospective observational study including 121 eyes of 117 consecutive patients with acute primary angle closure (APAC) over a four-year period, between 1 January 2010 to 31 December 2014. Seventy-three percent had achieved visual acuities of ≥ 6/12,...

Altomed announces attendance at RCOphth

Altomed are pleased to confirm they will be attending RCOphth congress in May with their ever-popular hands-on workstations and practice lab. Once again, they will have the much talked about Malyugin Ring #fastestestringer challenge, SimulEYE training models and try before...

Mastering Monovision with Professor Graham Barrett and Mr Alastair Stuart

Professor Graham Barrett, creator of RayOne EMV, joins Mr Alastair Stuart, Medical Director of Optegra UK, to discuss why he frequently selects this lens for patients in Rayner’s Peer2Peer podcast series. Mr Stuart shares insights on patient selection, calculations, and...

Cataract surgery in the extremely small eye: morphology, comorbidities and outcomes in 300 eyes

This is a retrospective study from Heidelberg University, Germany, between January 2009 to October 2023, including 300 eyes of 191 patients undergoing cataract surgery with short axial length requiring lens implantation of > 30 dioptres. Eyes were classified into the...

Urban Changes and Rural Struggles for Ophthalmology in China

China is by far the most populated country in the world, with over 1.3 billion inhabitants. It is also the country with the highest number of blind and visually impaired people. As a developing country, half of China’s population lives...

Half a million factory workers in low-income countries have vision screened in landmark project led by alliance of US Businesses

Half a million factory workers in low-income countries have vision screened in landmark project led by alliance of US Businesses – a milestone announced today, World Sight Day.

Nanosecond laser cataract surgery

The authors review the evidence for nanosecond laser cataract surgery: is this the future? Cataract is a leading cause of visual impairment worldwide, and cataract surgery is one of the most successful and cost-effective healthcare interventions, with a great impact...

Are we short-sighted about myopia?

Worldwide prevalence of myopia has increased rapidly in recent years and has now reached epidemic levels, particularly in South-East Asia where prevalence is around 80% [1-4]. Myopia prevalence is also increasing in the United States and Europe where it is...