Objective To investigate the clinical effect of orthokeratology (ortho-k)during night and wearing frameglass during daytime for treating high myopic in teenagers.Methods 53 teenager cases (aged 10 - 14 years old)of high myopia with spherical equivalent degree -6.00--8.00 diopters (D)in our hospital were performed the retrospective analysis,among them,23 cases were the combined wearing of ortho-k and frameglass and 30 cases were simple wearing of frameglass.The changes of eye axi-al length at 6,12,18 24 months before and after wearing frameglass were measured and compared between the two groups.The spherical equivalent degrees were compared between before wearing frameglass and at 2 years after wearing frameglass.Results The spherical equivalent degree after stopping wearing for 1 month after 2-year wearing in the ortho-k and frameglass group was(-7.28±0.57)D,which after 2 years in the frameglass group was (-7.80±0.68)D,the 2-year spherical equivalent degrees in the or-tho-k and frameglass group and the frameglass group were increased by (-0.29 ±0.22)D and(-1.07 ±0.41)D respectively,the difference between the two groups was statistically significant(P <0.01);the eye axial growths were(0.12±0.04)mm and(0.37± 0.13)mms respectively,the difference between the two groups was statistically significant (P <0.01).Conclusion The combina-tion of ortho-k during night and frameglass during daytime can effectively relieve the myopia increase and eye axis elongation in the patients with high myopia and control the myopia development to some extent.

Objective To study the effective method of improving the diagnosis and treatment of blunt liver injury.Methods The clinical data of 135 cases with blunt liver injury hospitalized in Daxing District People' s Hospital from January 2000 to October 2010 were reviewed retrospectively.Results By standard grading of American Society of Trauma Surgery (AAST) in 1994,36 cases were grade Ⅰ,42 cases gradeⅡ,33 cases gradeⅢ,14 cases grade Ⅳ,10 cases gradeⅤ.Fifty-one cases were treated by non-operative therapy,among which 42 cases were crued,9 cases underwent operative surgery.Ninety-three cases were treated by operative therapy,seven cases died.The morbidity related to blunt liver injury was 5.19％.Conclusions Non-operative therapy may be used firstly in patients with stable hemodynamics,but close monitoring should be done for changes of the life signs.Timely and reasonable choice of time and the way of surgery is important to avoid complications and reduce the mortality rate.