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
The affected portion of the retina (ischemic) will appear white (retinal ganglion cells swell due to ischemia). In the case of a central retinal artery occlusion, the foveal center (center of the macula) appears red (called a cherry red spot).