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1525 results found

Simulating the visual impairment symptoms of age-related macular degeneration in virtual reality

A new virtual reality application visually simulates age-related macular degeneration and demonstrates its progression over time including some Charles Bonnet syndrome hallucinations. Introduction Age-related macular degeneration (AMD) is the leading cause of blindness in developed countries with the prevalence of...

Retreatment of myopic LASIK with femtosecond and custom ablation

The purpose of this study was to identify the risk factors for retreatment post laser in situ keratomileusis (LASIK). A retrospective chart review was carried out for a four-year period and all patients who had undergone LASIK at the Boston...

The role of injection assistant devices in establishing a nurse-led AMD service

The author shares his experience of setting up a nurse-led service to deliver anti-VEGF intravitreal injections and how injection assistant devices supported training. Age-related macular degeneration (AMD) has become a leading cause of irreversible blindness [1]. It is estimated that...

Shafi Balal on predicting keratoconus progression

In this interview, section editors Nima Ghadiri and Arun James Thirunavukarasu ask Ophthalmic Surgeon and NIHR Doctoral Fellow Shafi Balal about the development of his AI model for predicting keratoconus progression risk, with the longer-term objective of using AI on...

Exotropia symptoms

The aim of this study was to evaluate clinical preoperative symptoms and changes to these postoperatively in patients with exotropia. A non-validated questionnaire with 15 questions was used: three subscales including stereopsis (five questions), ocular fatigue (five questions) and cosmetic...

Who will benefit from cataract surgery?

The need for cataract surgery is expected to rise dramatically in the future due to the increasing proportion of elderly citizens and increasing demands for optimum visual function. The aim of this study was to provide an evidence-based recommendation for...

Improved suppression after surgery for intermittent exotropia

This study aimed to investigate the clinical factors associated with the recovery from suppression, with successful postoperative target motor alignment in 237 patients with intermittent exotropia. Mean age at surgery was 8.2 ±3.2 years and 48.5% were male. Preoperative angle...

RCT of unilateral vs bilateral surgery for lateral incomitance in exotropia

The purpose of this study was to evaluate and compare the surgical outcomes in the management of lateral incomitance with regard to ocular alignment and change in lateral incomitance in cases of bilateral vs. unilateral strabismus surgery. This was a...

Hot debates in medical retina and imaging: Perspectives from the Controversies in Ophthalmology 2020 virtual conference

Controversies in medical retina and imaging were debated during the Controversies in Ophthalmology 2020 virtual conference held during two mid-day scientific sessions on 27 and 28 March 2020. The author recounts key perspectives and presents viewpoint recommendations from the Vision...

Regulatory drug evaluations and expedited review initiatives: EU and US perspectives

The European Medicines Agency (EMA) and United States Food and Drug Administration (FDA) each conduct independent assessments of benefit-risk profile when evaluating applications to market new or modified medicines, and their respective decision-making is guided by distinct legislation, procedures and...

Understanding and confronting bacterial endophthalmitis

Abdus Samad Ansari highlights the importance of early recognition of this condition using an unusual presentation. Endophthalmitis is a medical emergency with devastating consequences. Despite adequate treatment, severe cases frequently result in permanent blindness. Endophthalmitis involves inflammation of both the...

How much money is wasted on tests prior to cataract surgery? And why?

For routine cataract surgery, numerous studies have found that preoperative testing does not contribute usefully to safety or surgical success. Despite such guidelines, tests ordered for patients prior to phacoemulsification in the US remains high. To quantify the associated costs,...