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The macula is the central section of the retina. The retina is a part of the eye that contains the photosensitive cells that are responsible in sending visual messages to the brain. The brain then interprets these electrical messages. The densest area of concentration of these photosensitive cells is located at the macula. The macular [...]

Strokes affect millions of people every year and can be deadly. Some occur suddenly; some have pre-stroke warning signs. TIA?s, or transient ischemic attacks, may or may not happen prior to a stroke. During a TIA, a blood vessel going to the head or neck becomes partially occluded, and this decreases [...]