On the day of the eclipse, a woman looked at the sun without protecting her eyes, The Verge reports.
She tried again using eclipse glasses, this time for 20 seconds, but the damage was done. After four hours she could only see black.
Now her eyes have are providing scientists' first glimpse of what happens on the cellular level when a person looks straight at the sun.
The woman, in her 20s, looked at the sun when it was already 70 percent covered by the moon. Three days later, she headed to Mount Sinai’s New York Eye and Ear Infirmary, and doctors informed her that she had permanently damaged her retinas. Her case study has been published in the journal JAMA Ophthalmology.
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