Changes of angle Kappa and corneal morphology changes in myopic patients after Sub / 中南大学学报(医学版)

OBJECTIVES@#To investigate angle Kappa and diopter distribution in myopic patients and the changes of angle Kappa and corneal morphology after Sub-Bowman-Keratomileusis (SBK), and to analyze the effects of the surgery on corneal morphologic changes and the patients' near fixation characteristics.@*METHODS@#The clinical data of 134 myopic patients (268 eyes) undergoing SBK from August 2015 to August 2016 were retrospectively analyzed. Angle Kappa, corneal curvature in the central corneal region of 3 mm, and post-corneal Diff value were measured by Orbscan IIz Corneal Topography System before operation, 1 month and 6 months after operation. According to the values of angle Kappa before SBK, the patients were divided into 2 groups: the large K group (angle Kappa≥5°, 71 eyes) and the small K group (angle Kappa<5°, 197 eyes). Correlation analysis of the factors influencing angle Kappa at 6 months after operation was performed.@*RESULTS@#In the large K group, angle Kappa was (5.67±0.65)°, spherical equivalent was (-4.84±2.32) D, and angle Kappa was decreased after operation (both @*CONCLUSIONS@#The angle Kappa is decreased in low-moderate myopia patients with large angle Kappa, while is increased in high myopia patients with small angle Kappa after SBK. Myopia patients after SBK will look for the new balance of the binocular accommodation and vergence function for improving the comfort in the near-work situations.

MEASUREMENT OF ACTIVITY OF ADENOSINE DEAMINASE IN PLEURAL FLUID FOR DIFFERENTIAL DIAGNOSIS OF TUBERCULOUS AND MALIGNANT PLEURAL EFFUSIONS / 解放军医学杂志

Adenosine deaminase (ADA) activity in pleural fluid from 81 patients was measured by colorime-tric method. Of these cases, 55 cases were tuberculous pleural effusion, 22 cases were malignant pleura! effusion and 4 cases were transudate pleural effusion.The mean ADA, activity in pleural fluid of tuberculous group was 188.3?58.2u and that of malignant group was 52. 2?15. 4u. Statistically the difference is highly significant (p0.05). In tuberculous group, pleural fluid ADA levels higher than 110u were found in 53. cases (96.3%), and those above 120u were found in 52 cases (94.5%), while no case in malignat group had the ADA level higher than 90u, and in 20 cases it is lower than 70u (20/22 cases, 90.9%). These data suggest that pleural fluid ADA activity may be a useful index in the differential diagnosis of tuberculous and malignant pleural effusions.