Spatial crowding decreases object recognition and conscious visual perception in clutter. In a previous study we used brief presentation times to reveal the effects of a crowded presentation in the fovea. Here we aimed to test the relationships between varying visual acuity (VA) and crowding in the fovea, under the assumption that in uncorrected presbyopia, the processing is relatively normal, ...

BACKGROUND In Tanzania, the prevalence of refractive error and presbyopia have not been comprehensively assessed, limiting appropriate planning and implementation of delivery of vision care. This study sought to determine the prevalence of refractive error and presbyopia, spectacle coverage and the barriers to uptake of refractive services in people aged 15 years and older in the Kahama distric...

The LASIK market will continue to be flat in 2015, as there is no earth-shaking development on the horizon in the world of excimer lasers. Machines may become faster and algorithms more refined, but no new innovations are expected. Additionally, although more buzz and data on ReLEx small incision lenticule extraction (SMILE) will surface, the procedure will continue to be nice to have in one’s ...

[This corrects the article DOI: 10.1186/s40662-017-0068-8.].

The prevalence of presbyopia continues to increase every year. The therapeutic approaches to presbyopia cover the spectrum of non-surgical to surgical techniques. With recent advances in biocompatible materials, corneal inlays make a strong case for their place within the treatment spectrum. This article takes a closer look at three of the current corneal inlay models: KAMRA, Raindrop, and Pres...