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
Overview of Retinal Detachment. Retinal detachment is the separation of the retina from the choroid, a membrane dense with blood vessels that is located between the retina and the sclera (white of the eye). The retina is a thin layer of light sensitive tissue that lines the back portion of the eye.