Editor’s Note: Welcome to “Eye Catching: Let's Chat,” a blog series featuring contributions from members of the ophthalmic community. These blogs are an opportunity for ophthalmic bloggers to engage with readers with about a topic that is top of mind, whether it is practice management, experiences with patients, the industry, medicine in general, or healthcare reform. The series continues with this blog by Alan B. Richards, MD. The views expressed in these blogs are those of their respective contributors and do not represent the views of Ophthalmology Times or UBM Medica.
When I first arrived in Louisiana more than 30 years ago, I was the state’s only pediatric ophthalmologist. Early on, I was interested in enhancing methods of visual acuity testing and screening for the community’s children. By 1981, I had helped develop the state’s school vision screening guidelines and found myself as the de facto head of vision screening in Louisiana.
Along with my colleague, Carolyn Phillips, a trained vision screener, we have worked for decades to educate local pediatricians, family practitioners, and school nurses to the importance of early childhood vision screening. We also collaborate closely with the Lions Clubs.
Long-standing recommendations from various professional societies and organizations have called for young children to be evaluated to identify those with visual defects, and for those determined to be at risk to be referred to a pediatric ophthalmologist.
The rate at which these recommendations are being implemented into daily practice, however, remains less than ideal. As many as 15% of children have risk factors for amblyopia, yet fewer than 20% of children receive adequate screening.1,2
Performing traditional visual acuity testing on children is time consuming, occupies a nurse or technician for several minutes, and may be inaccurate. A vision check often includes a red reflex examination with an ophthalmoscope and a visual acuity test.3
Ophthalmoscopy may not be sufficient to determine if amblyopic risk factors are present, and deprivational and refractive amblyopia are more difficult to find using an ophthalmoscope.4
Studies have also shown that there is a 0% positive predictive value for traditional visual acuity testing when children are 3 to 4 years old.3
Photoscreening, on the other hand, has been shown to be a better option, with the best evidence in kids ages 3 to 5 years.4,5
We currently recommend a mobile vision screener (plusoptiX) to our community partners. The device not only screens for refractive error, but it also picks up things like media opacities, ptosis and unequal pupils.
Although there is less evidence associated with the device’s use in children 6 months to 3 years of age, it will identify those who need early treatment, such as patching or glasses.
Device-based vision screening is extremely valuable in children with special needs and those who are developmentally delayed or nonverbal.
The device’s settings must account for the population and age group, as younger children will have more false positives. Most fail due to astigmatism; therefore, in our community we have encouraged pediatricians to use a setting of 3.00 D with the device.
Alan B. Richards, MD, is a pediatric ophthalmologist at the Highland Clinic and Louisiana State University Health Science Center in Shreveport, LA. He has no financial disclosures to report.
1. Donahue SP, Arthur B, Neely DE, et al. Guidelines for automated preschool vision screening: A 10-year, evidence-based update. J AAPOS. 2013;17:4-8. DOI: https://doi.org/10.1016/j.jaapos.2012.09.012. Accessed August 23, 2018.
2. Children’s Eye Foundation. Why SaveSight. https://www.childrenseyefoundation.org/S/why-save-sight/. Accessed Aug. 23, 2018.
3. Swanson J, Buckley E. Committee on Practice and Ambulatory Medicine, Section on Ophthalmology. American Association of Certified Orthoptists; American Association for Pediatric Ophthalmology and Strabismus; American Academy of Ophthalmology. Eye examinations in infants, children, and young adults by pediatricians. Pediatrics. 2003;111:902-907. http://pediatrics.aappublications.org/content/pediatrics/111/4/902.full.pdf.
4. Donahue, S. The role of technology in routine vision screening of infants and young children – a new policy statement from the American Academy of Pediatrics places heavy emphasis on photoscreening to detect treatable vision defects. Neonatology Today. 2016;11:1-4. https://www.neonatologytoday.net/newsletters/nt-may16.pdf.
5. US Preventive Services Task Force. Vision in children aged 6 months to 5 years. https://www.uspreventiveservicestaskforce.org/Page/Document/UpdateSummar.... Accessed Sept. 20, 2018.