Eye drops offer a new option to reading glasses for some
An eye drop that improves close-range vision could make misplaced reading glasses less of an inconvenience for many of the 128 million Americans who suffer from agerelated deficits in near vision. Vuity, which became available by prescription this month, is a once-a-day treatment that can help users see up close without affecting their long-range vision.
“For anybody who doesn’t want to fiddle with reading glasses, this might be a really helpful alternative,” said Dr. Scott MacRae, an ophthalmologist at the University of Rochester’s Center for Visual Science. MacRae was not involved in the clinical trials for the drug, which was approved by the U.S. Food and Drug Administration in late October.
Nearly 90% of U.S. adults older than 45 have problems with close-range vision, a condition known as presbyopia that typically worsens over time. To focus on close objects, the eye’s lens must change shape, yet it becomes less flexible as people age, making this process difficult.
People who suffer from presbyopia often find that they need to hold a book at arm’s length or turn on a bright light to read it, said Dr. George Waring IV, an ophthalmologist and medical director of the Waring Vision Institute in Mount Pleasant, South Carolina, who led Vuity’s clinical trials for the pharmaceutical company Allergan. Typically, eye doctors recommend that people with presbyopia wear over-thecounter or prescription reading glasses when they need to see up close, but Vuity may also be an option for them, he said.
Vuity improves near vision by constricting the size of the pupil. “It makes the pupil small, creating what we call a pinhole effect,” which reduces the amount of peripheral light that passes through the eye that can make it hard to focus, said Dr. Stephen Orlin, an ophthalmologist at the University of Pennsylvania Perelman School of Medicine.
Vuity’s active ingredient is a drug called pilocarpine, and it is not a new medication. It’s actually “one of the oldest drops that we have in ophthalmology,” Orlin said. It has been used for decades to treat glaucoma, a condition characterized by damage to the optic nerve. Although Vuity is the first product of its kind to treat presbyopia, at least nine similar eye-drop products are in clinical development to treat presbyopia and may be available in the future, Waring said.
A single Vuity drop in each eye improved trial subjects’ close-range vision for six hours and improved their intermediate vision — important for computer work — for 10 hours.
Vuity’s benefit over reading glasses is that it does not impair distance vision as reading glasses do. Usually, when a person stops reading to do something else, they need to remove their reading glasses to see around them properly. “That’s the good part about this — the drops don’t really affect distance vision under normal daylight conditions,” MacRae said.
MacRae also noted that Vuity will work best for people who have only mild to moderate presbyopia, which probably means people between the ages of 45 and 55. Older individuals with more serious presbyopia may find that the eye drops do not improve their near vision enough to make a difference.