In August 2017, a 26-year-old woman in Staten Island, New York, sustained permanent retinal damage after glancing at a partial solar eclipse for seconds without certified filters.
The solar eclipse of August 21, 2017, drew tens of millions of people outdoors across the United States. While astronomers tracked a total eclipse along a narrow band from Oregon to South Carolina, residents in other regions experienced partial coverage. Among them was Nia Payne, a 26-year-old resident of Staten Island, New York.
Located within the zone of partial coverage where roughly seventy percent of the sun’s disc was obscured, Payne stepped outside without protective eyewear. Initially, she relied on natural instincts, glancing at the sun for about six seconds before experiencing discomfort. She then borrowed what appeared to be eclipse glasses from someone nearby and looked at the sun for another fifteen to twenty seconds. Subsequent evaluation by ophthalmologists confirmed those glasses were not certified ISO-12312-2 filters matching the safety standards repeatedly publicized by the American Astronomical Society.
Clinical Findings and the Mount Sinai Case Report
By the time Payne returned indoors, her left eye exhibited a blurred area in the center of her visual field. Over the subsequent two days, that blur resolved into a distinct shape: a crescent positioned directly in the middle of her field of vision, mirroring the exact alignment of the moon during her brief exposure.
Medical details of the incident were documented in a peer-reviewed case report published in JAMA Ophthalmology in December 2017. Titled Acute Solar Retinopathy Imaged With Adaptive Optics, Optical Coherence Tomography Angiography, and En Face Optical Coherence Tomography
, the report was authored by Chris Y. Wu, Michael E. Jansen, Jorge Andrade, Toco Y.P. Chui, Anna T. Do, Richard B. Rosen, and Avnish Deobhakta. The team operated out of the New York Eye and Ear Infirmary of Mount Sinai and the Icahn School of Medicine at Mount Sinai.
When Payne arrived at the clinic, her visual acuity measured 20/20 in her right eye and 20/25 in her left eye, representing a relatively mild degradation by standard clinical metrics. Her subjective experience, however, proved far more disruptive. The crescent-shaped scotoma sat directly over anything she attempted to read, focus on, or recognize.
Cellular Mechanics of Solar Retinopathy
To understand what happened to Payne’s vision, the Mount Sinai clinicians examined the photoreceptor layer at the back of her retina, the specialized neural tissue lining the eyeball’s interior.
The outer layer of the retina contains photoreceptor cells responsible for light detection. Rods manage low-light and peripheral vision, while cones handle color and fine detail, concentrated densely in the fovea—the central region used for direct gaze. Solar retinopathy occurs when concentrated sunlight damages these cells through two distinct, overlapping mechanisms.
First, thermal injury occurs as the eye’s lens focuses incoming sunlight onto the retinal tissue, raising its temperature beyond cellular tolerance thresholds. Second, photochemical damage arises when ultraviolet and short-wavelength visible light deliver enough photon energy to break molecular bonds inside light-sensitive proteins. This process generates free radicals that destroy surrounding cellular structures, operating even at temperatures below the thermal threshold. Once destroyed, photoreceptor cells do not regenerate or grow back.
Drawings That Matched Retinal Imaging
During her initial clinical intake, the Mount Sinai team instructed Payne to draw what she saw rather than merely describing it. Using an ordinary pen and paper, she reproduced the blind area in her central vision.
The resulting drawing depicted a crescent oriented precisely the way the partial eclipse had appeared in the sky on August 21. The concave curve of the moon’s disc, imprinted permanently onto her visual field, matched the imaging results obtained by the ophthalmologists when they looked inside her eye to inspect the damaged photoreceptor layer.
Celestial Alignments and Future Eclipse Seasons
While historical cases underscore the dangers of unprotected viewing, astronomical schedules continue to draw public attention to solar alignments. A new moon occurred at 5:43 a.m. EDT on Tuesday, July 14, marking the final new moon before a total solar eclipse scheduled for Wednesday, August 12, according to reporting by Forbes.
The upcoming total solar eclipse will send the moon’s dark central shadow across eastern Greenland, western Iceland, the Atlantic, northern Spain, and a small corner of Portugal. NASA’s Scientific Visualization Studio mapped the path of totality, highlighting destinations such as Greenland’s Scoresby Sund—targeted by expedition cruise ships—alongside western Iceland, including Reykjavik, and northern Spain.
For North America and Europe, the August 12 event will yield a partial eclipse. Projected coverage figures for North American locations include 53% in St. John’s, Newfoundland and Labrador; 31% in Halifax; 28% in Saint John; 24% in Québec City; 16% in Boston; and 10% in New York.
Scientific Context of Lunar Nodes and Eclipse Seasons
Most monthly new moons fail to produce solar eclipses because the moon’s orbital plane tilts by approximately five degrees relative to Earth’s orbit around the sun, typically passing above or below the solar disc.
Eclipses occur exclusively during an eclipse season—a 34-to-35-day window when the sun appears close to one of the two lunar nodes where the moon’s orbit crosses Earth’s orbital plane. The July 14 new moon initiates the sequence leading directly to the August 12 alignment.
Additionally, the annual Perseid meteor shower runs from July 17 to August 24, peaking on the night of August 12 and 13 under a new moon for observers across the Northern Hemisphere. Astronomers emphasize that whether viewers watch meteor showers or partial solar phases from North America, proper safety equipment remains critical.
Certified eclipse glasses and front-mounted solar filters remain mandatory for safe viewing during all partial phases, serving as the primary defense against permanent retinal injury.
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