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.
In most human cases, signs of rabies develop 1 to 3 months after exposure. Early symptoms include fever, headache, itching at the site of the bite, confusion and abnormal behavior. Hypersensitivity to light and sound, and difficulty swallowing can also occur. Once signs of disease begin, recovery is very rare.