HealthWatch: Vision Checks For Preschoolers; Height Vs. Blood Clot RiskDoctors say all children ages 3 to 5 years of age should undergo screening for lazy eye and that shorter people may be at lower risk of blood clots.
'Glasses Off' App Claims To Retrain Brain To See BetterWBZ-TV's Dr. Mallika Marshall looks into claims that an app can retrain your brain to see better.

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