Constructing vignettes from retina images and data can serve as a useful low-cost alternative to clinical trials for evaluating different screening approaches, researchers said. The researchers, from seven British medical centres, have taken this approach in a virtual trial to determine whether community optometrists can assess the risk that quiescent neovascular age-related macular degeneration (AMD) lesions can reawaken.
Giant retinal tears pose outsize challenges for physicians, including the risks of hemorrhage, heavy fluid droplets, and macular holes, according to Gerardo Ledesma-Gil, MD, who was challenged with both of these complications in a recent case.
The Novel Evidenced Assessment of Tortuosity (NEAT) system is intuitive and works even with poor images, according to its creators, Konstantinos Balaskas and his colleagues at Manchester Royal Eye Hospital and five other centres in the United Kingdom.
Though there is scant research to guide treatment, tea tree oil shampoo might successfully improve some cases of blepharitis, according to two physicians at the Eye Unit, Southampton General Hospital, Southampton, United Kingdom.
Rounded phaco tips reduce the risk of posterior capsule rupture, increasing the safety of phacoemulsification. The Dewey Radius Tip, which is used exactly like a sharp-edged phaco needle, has rounded edges. This reduces the risk of posterior capsule rupture during cataract surgery.
Five years of experience with the Rayner T-flex aspheric IOL show it to be a safe, highly effective long-term method of correcting the widest possible range of sphere and cylinder errors in pseudophakic patients with pre-existing corneal astigmatism.
The use of a keratometric index to estimate total corneal power calculation is imprecise, especially in corneas with keratoconus or after myopic laser refractive surgery. The errors can be reduced by using an adjusted keratometric index, consisting of a variable keratometric index that depends on the radius of the anterior corneal surface.
The combination of MICS and MIGS can offer an effective surgical treatment for POAG when the reduction of IOP following cataract surgery alone is not sufficient to reduce a patient’s need for glaucoma therapies.