According to photochemistry theory, the physica1 processes, in which the plasma flashing destroys the hypo-class band of the high grade structure of the protein molecule and makes the structure of the protein molecule decomposed and extending and relaxing in the crystal hyaline cortex emulsification operation with the Nd: YAG laser, is proposed in this paper.

According to the basic theory of intetaction between laser and tissues,the mechanism of laser induced hyaline cortex emulaification in the operation is discussed,and it is put forward that the mechanical effect of laser plasma shock wave and Photochemical effect of plasma flailing on eye tissues result in the crystal hyaline conex tissue protein degeneration and coagulation.

Study on degradation methods and conditions of hyaluronic acid;

Reaction conditions of hyaluronic acid hydrolysis catalyzed by hyaluronidase;

Study on fermentation preparation of hyaluronic acid by Streptococucus zooepidemics NW-162;

The effects of culture and fermentation conditions on the fermentation of hyaluronic acid(HA) produced by Streptococcus zooepidemicus were studied.

Methods\ Glycosaminoglycan(GAG) and Hyaluronic Acid(HA) of the wounded tissue and normal skin from the fetal,maternal and adult rabbits were measured using the techniques of chromatometry and electrophoresis.

Measurement of characteristic of transparent medium and study of experiment method;

Measuring index of refraction of transparent medium with linear CCD;

This article introduced the experiment process and the method,surveying the refractive index of transparent medium by Glancing Incidence,and the experiment obtains the refractive index of ethyl alcohol,pure water and glycerol with sodium source,and discussion on the priciple developed to survey the refractive index of the air,triangular prism.