The latest study, released by the plaintiffs in a class-action lawsuit against Fitbit, found that the pulse-monitoring technology used in the company's wrist-bound Surge and Charge devices was highly inaccurate during elevated physical activity..
An eye disease affecting the macula (the center of the light-sensitive retina at the back of the eye), causing loss of central vision. Migraine with Aura: A type of severe headache accompanied by various visual symptoms. Myopia: See nearsightedness: Nearsightedness
A macular hole is a small break in the macula. The macula is located in the center of the retina, an area of light-sensitive cells at the back of the eye. The macula controls central vision, which is the sharp, straight-ahead vision we need for reading, driving, and seeing fine detail. A macular hole can cause blurred and distorted central vision.