[Efficacy evaluation of acupoints massage on asthenopia of video display terminal under different exposure dose].
OBJECTIVE
To observe the efficacy differences of acupoints massage for asthenopia of video display terminal (VDT) under different exposure dose.


METHODS
One hundred and two cases (204 eyes) were divided into a low exposure group and a high exposure group, fifty-one cases in each group. The same intervention of acupoints massage on Cuanzhu (BL 2), Jingming (BL 1), Sizhukong (TE 23), Sibai (ST 2) and Taiyang(EX-HN 5) were given to the two groups, one acupoint for 5 min and once everyday, one month of which made a course. The symptom score, tear film break-up time (BUT) and Schirmer I test(SIT) were observed before and after treatment.


RESULTS
(1) The correlation coefficient of cubic curve model of the exposure dose was the biggest with symptom improvement index (P = 0.000), which indicated that the lower VDT exposure index was, the more obvious the symptom improved. The symptom improvement indices of low exposure group and high exposure group, which were (52.31 +/- 16.65)% and (28.93 +/- 13.35)% respectively, were statistical significant difference (P = 0.000). (2) Compared to before treatment, the levels of BUT and SIT in the two groups were both significantly higher (P < 0.05). Compared with the high exposure group, the levels of BUT and SIT in the low exposure group were increased by 0.826 s (P = 0.022) and 1.029 mm (P = 0.033), respectively, after the impact of BUT and SIT was corrected before the research.


CONCLUSIONS
The acupoints massage can improve the symptoms and ocular physiology for patients with VDT asthenpia, and it is more effective for the low exposure cases.
The Center for Disease Control and Prevention of Luoyang City, Henan Province, China.
Yan
Y
Xu
Guang-Xia
GX
Gu
Xiao-Sheng
XS
Yang
Chun-Ying
CY
Pan
Wen-Li
WL
Hou
Wei
W
Zhao
Qin
Q
Xing
D015669:Acupuncture Points; D000328:Adult; D001248:Asthenopia / Q000503:physiopathology / Q000628:therapy*; D016288:Computer Terminals / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008405:Massage; D008875:Middle Aged; D009784:Occupational Diseases / Q000503:physiopathology / Q000628:therapy*; D013666:Tears / Q000378:metabolism; D016896:Treatment Outcome; D055815:Young Adult