Before that it was radial keratotomy which my Mom had. Maybe it is apocryphal but she told me they discovered it when a Russian someone got exploded glass in their eye and it improved their vision.
According to the wikipedia article, it was a Russian child that fell while riding a bike and his glasses broke and sent pieces of glass into both eyes. The doctor made radial cuts to remove the glass, and discovered that his vision improved afterward.
Before that it was radial keratotomy which my Mom had. Maybe it is apocryphal but she told me they discovered it when a Russian someone got exploded glass in their eye and it improved their vision.
https://en.wikipedia.org/wiki/Radial_keratotomy
According to the wikipedia article, it was a Russian child that fell while riding a bike and his glasses broke and sent pieces of glass into both eyes. The doctor made radial cuts to remove the glass, and discovered that his vision improved afterward.
Makes sense, ha. I only briefly read it was invented in the 50s. But 90s for mainstream adoption and approval sounds about right