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激光在医学领域中已广泛用于诊断、治疗、护理及医学基础理论研究。激光有光、热压力和电磁四大效应。而泪道里细胞外被有不同感光，对氦氖激光有很高的吸收率。通过氦氖激光的照射，可以激发化学与热的作用，使深部血管扩张，血流加快，改变组织所需要的氧和营养物质。使组织代谢旺盛，活力加强。从而使慢性炎症，充血、水肿得到改善和消退，软化瘢痕使阻塞、狭窄症状缓解。
Lasers have been widely used in the medical field for diagnosis, treatment, nursing, and medical basic theoretical research. Laser light, heat pressure and electromagnetic four effects. In the lacrimal passages, the cells are exposed to different sensitizations, and they have a high absorption rate for holmium lasers. Through the irradiation of He-Ne laser, it can stimulate the role of chemistry and heat, make the deep blood vessels expand, accelerate the blood flow, and change the oxygen and nutrients needed by the tissue. Makes the organization strong in metabolism and strengthens its vitality. As a result, chronic inflammation, congestion, and edema are improved and resolved, softening the scars and relieving the symptoms of obstruction and stenosis.