Short-sightedness. Someone with short-sightedness can see near objects clearly, but cannot focus properly on distant objects. This is caused by the eyeball being elongated, so that the distance between the lens and the retina is too great.
Radon Symptoms. What are the symptoms of radon poisoning? Since radon is the #2 cause of lung cancer in the U.S., respiratory ailments are the most likely signs of radon-related distress. A persistent cough, hoarseness, breathing difficulties, and recurring respiratory infections are all possible indications of radon poisoning.
Radon is present in nearly all air. Everyone breathes in radon every day, usually at very low levels. However, people who inhale high levels of radon are at an increased risk of developing lung cancer. Radon can enter homes through cracks in floors, walls, or foundations, and collect indoors.