First,through symptom observation and PCR detection of the diseased overwintering branches which were collected respectively in late autumn,winter,and early spring and cultured in hydroponic system,the specific band of phytoplasma of the size of 1.

The results show that there exists significant influence to the CFF of eyes in the color factors,the observation states of stationary stand and the broadcasting music, and this can result in impartial judge in judging process.

Diagnose pristine dry eye syndrome by subjective symptoms and laboratory findings;

With regard to electromagnetic field emitted by mobile phone maybe influence tumor,learning and memory,subjective symptoms and blood-brain barrier, a large number of studies have been performed abroad.