A Single Photo of the Eye May Reveal Which Children Are Headed for Severe Nearsightedness

A Single Photo of the Eye May Reveal Which Children Are Headed for Severe Nearsightedness

An artificial intelligence system trained on more than 150,000 retinal images predicted which children's vision would deteriorate sharply within a year, offering ophthalmologists a chance to intervene before the damage is done.<_o3a_p>

NEW ORLEANS - Nearsightedness is on the rise in children around the world. But among those who just got their first pair of glasses, whose vision will stabilize and whose will keep growing toward the kind of severe nearsightedness that raises the risk of blinding disease later in life? A new study presented this week at the 130th annual meeting of the American Academy of Ophthalmology suggests the answer may be visible in a single photograph of the back of the eye.<_o3a_p>

Researchers in Beijing, China report that a deep learning algorithm, analyzing one fundus photograph taken without dilating drops, could forecast which children would progress to moderate or high myopia (nearsightedness) over the following 12 months. For the most serious outcome, high myopia, the system's accuracy score reached as high as 0.96 on a scale where 1.0 is a perfect prediction.<_o3a_p>

Teaching a Computer to Read the Retina<_o3a_p>

The researchers, Ang Ji, MBBS, and Yin Guo, MD, built their system in two stages. First, they trained it on 150,213 retinal images to estimate a patient's spherical equivalent, the single number that summarizes the strength of a person's eyeglass prescription. That step taught the algorithm to recognize the subtle anatomical signatures that accompany nearsightedness.<_o3a_p>

They then refined the model using a separate group of 16,384 children who were followed over time, allowing it to learn not just what a nearsighted eye looks like today, but what an eye on the verge of worsening looks like a year in advance.<_o3a_p>

Crucially, the team tested the system on two additional, independent groups of children, numbering 2,309 and 2,783, whose images the algorithm had never seen. This kind of external validation is often where medical artificial intelligence tools stumble, performing well in the lab and poorly in the real world. But the real-world results held up.<_o3a_p>

For predicting progression to moderate myopia, defined as a prescription of minus 3.00 diopters or worse, the model scored between 0.88 and 0.89 across all three groups. For high myopia, minus 6.00 diopters or worse, it scored between 0.91 and 0.96.<_o3a_p>

The system was less accurate at a different task, predicting which children with normal vision would become nearsighted for the first time. On that question, its scores ranged from 0.68 to 0.73, a level the researchers themselves described as moderate. In other words, the tool appears better at identifying which already-vulnerable eyes will get worse than at spotting which healthy eyes will begin to fail.<_o3a_p>

A Growing Epidemic<_o3a_p>

The findings arrive at a time that many ophthalmologists describe as a global epidemic of childhood myopia. The World Health Organization predicts that, if the current trend continues, half of the world's population will be nearsighted by 2050 - with up to one-fifth at an increased risk of blindness due to complications of high myopia. Myopia rates are highest in East Asia, but prevalence has been rising in the United States and Europe as well.<_o3a_p>

The stakes extend well beyond the inconvenience of wearing glasses or contact lenses. It carries a meaningfully elevated risk of retinal detachment, glaucoma, cataracts and myopic maculopathy - complications that can cause permanent vision loss. The higher the prescription, the greater the danger, which is why preventing a child from crossing into high myopia is a central goal of treatment. <_o3a_p>

Treatments Exist, but Timing Matters<_o3a_p>

A body of peer-reviewed research now points to several approaches that can measurably slow myopia's advance in children and teenagers. Low-dose atropine eye drops reduce progression by roughly 30 to 60 percent depending on concentration, and daily soft contact lenses, approved by the FDA for children, showed a 59 percent reduction over three years. The FDA has also approved special eyeglasses for children ages 6 to 12 that correct central vision while deliberately blurring peripheral vision, a signal that encourages the eye to slow its growth. <_o3a_p>

Atropine's regulatory path has been uneven. As of early 2026, low-dose atropine had not received FDA approval for myopia control and is being prescribed off-label. Evidence supports its use in East Asian children, while its effectiveness in children in Western regions is less certain and requires further study.<_o3a_p>

All of these treatments work best when started early, before the eye has elongated significantly, and each carries a cost. That creates a dilemma for clinicians: treat every nearsighted child aggressively or wait and risk missing the window for those who will worsen fastest.<_o3a_p>

A reliable way to sort high-risk children from low-risk ones could help resolve that dilemma, directing intensive treatment where it is most needed and sparing other families the expense and hassle.<_o3a_p>

Practical Advantages, and Open Questions<_o3a_p>

Part of the appeal of the new approach is its simplicity. Nonmydriatic fundus cameras, which photograph the retina without the stinging drops and hours of blurry vision that dilation requires, are already common in pediatric clinics and school screening programs. <_o3a_p>

There are some caveats to this early research. The model forecasts only one year ahead, while myopia typically progresses across many years of childhood. And it remains to be shown whether using the algorithm to guide treatment actually leads to better vision for children, the ultimate test for any screening tool.<_o3a_p>

Still, the results add to a growing body of evidence that the retina holds far more information than the human eye can discern, and that machines may be able to read it.<_o3a_p>

About the American Academy of Ophthalmology<_o3a_p>

The American Academy of Ophthalmology is the world's largest association of eye physicians and surgeons. A global community of 32,000 medical doctors, we protect sight and empower lives by setting the standards for ophthalmic education and advocating for our patients and the public. We innovate and support research to advance our profession and to ensure the delivery of the highest-quality eye care. Our EyeSmart® program provides the public with the most trusted information about eye health. For more information, visit aao.org.<_o3a_p>

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