A new study shows improved sleep and daytime cognitive ability after patients undergo cataract surgery with intraocular lens implants.
These study results were reported in JAMA Ophthalmology and conducted by researchers at the Harvard Medical School in Boston.
A small laboratory study involving 13 patients aged 55 to 80 who had undergone cataract surgery two to three weeks prior was conducted. The study found that patients with new intraocular lenses, also known as "lens implants," spent more time in deep sleep. As a result, they performed better on cognition tests than their study counterparts of the same age who did not have cataracts.
Researchers hypothesize that the cataract lens replacements improve the circadian rhythms in the patient by allowing more daylight into the eye during the waking hours, resulting in improved sleep and better cognition skills.