Doctors in California and other states have begun to allow patients to wear prescription glasses with contact lenses, a move that could reduce the stigma of wearing prescription lenses.
Doctors in New York, Washington and Connecticut have begun allowing patients to opt for contact lenses with prescription lenses, as well.
The move is part of a broader trend to allow prescription eye glasses to be worn in public in the U.S., which is expected to cost $6.8 billion over 10 years, according to a report released Tuesday by the advocacy group Drug Policy Alliance.
The study estimates that up to 5 million Americans have some type of prescription-drug-related medical condition, including the spectacles that doctors say reduce glare.
A few years ago, about 2.5 million Americans had glasses, but that number had dropped by more than half by 2015.
The U.K. and France also allow prescription lenses with contact lens technology, but the U of S. does not.
The report said the new law was a response to concerns that the spectacle would be viewed as a cosmetic device and could lead to health risks.
The law does not explicitly allow prescription-eye glasses with prescription-like lenses, but a spokesman for the U