The glaucoma easy is examined by "Storm of sand".

The noise "ZAAAAA" flows with the channel of the television that doesn't receive the electric wave with the image like a white, black black blizzard , saying that "Black blizzard screen". The diagnostics of the glaucoma puts a round seal etc. on the center of this screen, parts about 30 centimeters, and watches this seal with one of each eye. It is said that there is a possibility of the glaucoma when the black blizzard stops, and it seems that peripheral view is lacked.

However, it makes to a multi channel by spreads such as CATV and BS recently, and the black blizzard is not seen. In that case, it is possible to substitute it in space where a small character such as the stocks columns and the English newspapers of the newspaper has been thickly buried.

Unexpectedly familiar sickness that one person in 28 Japanese gets normal tension glaucoma. It is said that it is easy to develop since especially 40 years old. Treatment method general symptom deterioration prevention with early stage detect and applying eyewash medicine. Moreover, the person from 80 percent to 90 percent has not received treatment due to sickness it is not easy to notice it him yet.