A novel toric IOL features an aberration-free, transitional conic anterior optic surface shows pupil independence and improved tolerance to misalignment in bench testing and excellent clinical outcomes.
Cheryl Guttman Krader
Trifocal 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.
Accommodating-disaccommodating IOLs are being developed that mimic the movement of the young crystalline lens through the use of “Zonular Capture Haptics” technology.
Multifocal IOLs offer the potential to reduce spectacle dependence, but outcomes vary depending on optical design. Optimizing success and satisfaction depends on careful patient selection, thorough counseling, and good surgical technique.
A new non-apodized diffractive trifocal IOL allows 88% energy utilization and sends energy to near (40 cm), a preferred intermediate distance (60 cm), and far (infinity). Early results for visual acuity, contrast sensitivity, and photopic symptoms are encouraging.
Multifocal IOLs with a trifocal diffractive optic design are available outside of the United States. They provide good visual acuity for distance, intermediate, and near and appear to provide slightly better intermediate vision than bifocal diffractive multifocal IOLs.
The Steroids for Corneal Ulcers Trial allays some fears about using a topical corticosteroid as an adjunct to antibiotic treatment in eyes with a bacterial corneal ulcer.
Findings from an international trial with follow-up in some subjects now extending beyond 6 years show that a retinal prosthesis (Argus II Retinal Prosthesis System, Second Sight Medical Products) remains safe, said Allen C. Ho, MD.
New diagnostic platforms for dry eye disease can help in determining the underlying cause and severity, which is useful for guiding treatment decisions.
Since dry eye is an early presenting sign, eye-care providers need to maintain a high index of suspicion for Sjögren’s syndrome in patients with clinically significant dry eye.