Refractive

Toric trifocal IOL brings expanded range of functional vision to larger patient population
Toric trifocal IOL brings expanded range of functional vision to larger patient populationTrifocal IOLs can provide good uncorrected vision at near, intermediate, and far. Outcomes in a series of 30 patients show that a toric version of a trifocal IOL (AT Lisa tri 939MP, Carl Zeiss Meditec) delivers those benefits for patients with > 1 D of corneal astigmatism.
Understanding pros, cons of the latest corneal refractive procedureIn a timely talk at Refractive Surgery Subspecialty Day 2016, Sunil Shah, MD, made a case for why refractive surgeons might want to consider this minimally-invasive corneal refractive procedure.
Why single-instrument screening for keratoconus remains a dreamThe promise of simple, objective, single instrument-based screening for highly asymmetric keratoconus in patients considering LASIK is still more of an idea than reality. Multiple metrics can identify early keratoconus in a minority of affected eyes, but none of the metrics consistently identify early corneal abnormalities and none of the metrics identify the same eyes as being at elevated risk for ectatic disease.
New corneal inlay offers choice for presbyopia improvementAn implantable corneal inlay recently approved by the FDA gives ophthalmologists a new choice in treating presbyopia.
Vision problems affecting English children’s literacyReductions in vision correlate with lower literacy scores on standardised tests, a new study showed.
FDA approves one-of-a-kind IOL with extended range of vision
FDA approves one-of-a-kind IOL with extended range of visionIt has been a history-making week for the ophthalmic world, and the FDA approval of the first IOL with extended range of vision (Tecnis Symfony IOL, Abbott) has only added one more reason for celebration.
New-generation presbyopia-correcting IOLThe U.S. IDE clinical trial of the investigational extended range of vision IOL (Model ZXR00; Tecnis Symfony Extended Range of Vision IOL, Abbott Medical Optics) found that the implant delivered a full range of uncorrected vision and minimized or eliminated the need for spectacle wear in most patients.
Treating presbyopia with an eye drop?A topical treatment that breaks apart disulfide bonds between crystalline lens proteins was shown to increase accommodative amplitude and improve near visual acuity in a randomized, placebo-controlled clinical trial.
Technique targets source of rainbow glare symptoms
Technique targets source of rainbow glare symptomsRainbow glare rarely occurs after femto-LASIK surgery and is usually transient. Phototherapeutic keratectomy of the flap undersurface targets the cause of the glare and has been used to immediately resolve symptoms in patients with persistent disabling rainbow glare.
What a novel scleral implant may mean for presbyopia
What a novel scleral implant may mean for presbyopiaA scleral implant surgery system for presbyopia is being evaluated in a phase III study. One investigator talks about his experience.