Optics News

As questions and mixed information about how to remain safe during the COVID-19 pandemic continue to circle online, the CDC and data from a new peer-reviewed paper by five prominent ocular scientists confirm that healthy individuals can continue to wear contact lenses.

A five-step strategy, based on functional aspects and pathogenetic considerations, could help prevent the onset and reduce the progression of myopia in children and adults.

Healio.com/OSN is the online home of Ocular Surgery News. In addition to housing the online version of OSN, Healio/OSN creates daily news, meeting news coverage, executive summaries of journal articles, perspectives, videos, blogs and podcasts. With the increasing importance of Healio as the online presence of Ocular Surgery News and the continuous growth that is taking place online, we decided it was a good time to boost the Healio/OSN editorial board presence in the ophthalmic community.

RightEye LLC has announced the availability of its extensive database of more than 1 billion eye-tracking data points from more than 100,000 patient tests conducted using the RightEye system.

CHICAGO — Richard Lee, MD, PhD, of Bascom Palmer Eye Institute at the University of Miami, discusses how his team conducts vision screenings for underserved international populations at the American Academy of Ophthalmology meeting here.

NEW YORK — From OSN New York 2018, Ivan Mac, MD, MBA, founder of Metrolina Eye Associates, gives his presentation on what to know about dysphotopsias.

The pinhole is well-known to the practitioner to determine the potential vision of a patient without having to perform a refraction. A 1.2-mm pinhole is typical because you can achieve 20/20 vision with ametropias up to 5 D, but above this value a smaller pinhole is needed. We see this in the experiment by Miller and Johnson in 1977 on the “quantification of the pinhole effect,” seen in Figure 1, in which they concluded that a “thin, dyed contact lens may have clinical value for large refractive errors such as aphakia.” Eleven years later, Zacharia and Miller made holes of varying sizes in clear lenses and found significant visual acuity improvement with defocus.

The exponential growth in the prevalence of low vision with age reflects the increased risk of vision loss as a result of age-related eye disease each year, according to researchers utilizing data from the National Health and Nutrition Examination Survey.

All infants with suspected congenital Zika syndrome have been found to have vision impairment, S. Grace Prakalapakorn, MD, PhD, assistant professor of ophthalmology and pediatrics at Duke University, said during the Zika Virus and Your Eyes webinar hosted by Prevent Blindness.

Deciding the refractive target and IOL for cataract surgery is a daunting task for both the surgeon and patient. The first two questions that must be answered are: Do you mind wearing glasses for intermediate and near tasks, and would the presence of halos and glare be acceptable in exchange for reducing your dependence on glasses?