The Research Of Refractive Correction Technology Based On Laser Thermal Cornea Coagulation Principle And Forecasting

With the development of society and the average life expectancy of mankind spans, more and more people to join the ranks of old. Such as hyperopia research depending on laser refractive correction are far-sighted as hot eye in the world.As is known to all, using laser precision machining function of patients are near-sighted repairing the cornea to treat myopia, has a wide range of applications. But this method for improving the cornea dioptre is under various conditions far-sighted treatment. At present, DTK (Diode Thermal Keratoplasty) laser corneal forming technology of heat is a correct refractive status of far-sighted effective laser refractive surgical correction eye at home and abroad. DTK is still in the experimental stage of study, also lack sufficient clinical experience and data. Therefore, it is necessary to support from DTK corneal organization changes, DTK refractive correction mechanism, the method of mathematical analysis and experimental research, medical science, research and analysis of DTK refractive correction of accurate forecasting technology to explore clinical medical guidance.Eye optometry principle shows that the eye dioptre mainly depends on the outer surface cornea. The outer cornea surface is the key corneal dioptre. Therefore the corneal curvature radius changed appearance with correction dioptre eyeball is feasible and effective. This research is core technology of DTK, laser coagulation effect by thermal donor organizations to produce the desired to reduce shrinkage, corneal curvature radius, the outer surface of the increase in dioptre outside surface cornea, refractive correction is designed, and hyperopia refractive correction prediction software, in order to improve the prediction accuracy of hyperopia refractive correction.The main research contents are as follows:(1)From the eye optometry principle, studied and discussed with the laser corneal organization mechanism at home and abroad, and related technology develops eye comparative analysis, the research DTK refractive correction technology advantage were reviewed.(2)Analyzed theoretically, diode laser thermal keratoplasty refractive correction technique of refractive correction of geometry and mathematics model, study the key parameters of refractive change.(3)Using the method of experimental studies, animal experiment and the human experiment research, discusses the refractive correction DTK technology for animal eye key parameters change of refraction for safety and efficacy. Finally, the refractive correction technology is applied in human experimental study.(4)According to the theoretical analysis and experimental research, based on the maximum entropy of information management concept, the refractive correction database is analyzed theoretically. The refractive correction prediction mathematical model discusses the refractive correction prediction problem. Eye refractive correction prediction is obtained when the best value eye refractive change, According to the age, corneal thickness, central corneal refractive status before treatment, choose different characteristics such as laser power, laser emitting time, different annulus diameters and different number of laser photocoagulation.(5)Through theoretical analysis, experimental research, and maximum entropy theory in refractive correction prediction research, the application will be concentrated in forecast system based on the operational research of corneal forecast system software by.Net and. Web database technology to accumulate experience in application of hyperopia refractive correction.