Nearsightedness, or myopia, as it is medically termed, is a vision condition in which close objects are seen clearly, but objects farther away appear blurred.There is currently no cure for myopia, but spectacles, contact lenses and refractive surgery can all provide good distance vision for people with myopia. Wearing corrective lenses treats nearsightedness by counteracting the increased curvature of your cornea or the increased length of your eye.
In a study that includes 1518 subjects, 25 to 65 years old; 81.9% were male, and mean age was 43.2 +/- 9.8 years, 29.2% (95% confidence interval [CI], 26.9-31.5) of subjects were myopes. Our initial research suggests that the pupil responds more if these cells have been exposed to a lot of sunlight in the previous few days. That could serve as a proxy for how much dopamine the eye has been producing.