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Objective: To study the practicality and feasibility for a physician to diagnose and treat pleural diseases through thoracoscopy., Methods: To perform open thoracoscopy on 345 patients with a fibrobronchoscope or a hard thoracoscope under local anesthesia and evaluate the safety and tolerance of patients during the operation., Results: (1) Determination of etiology: in 92.7% (227/245 cases) of pleural effusion cases, 75.0% (69/92) of pneumothorax cases, etiologic causes have been determined and 8 cases of pleural tumors were diagnosed. (2) Therapeutic effectiveness: the response rate of malignant pleural effusions was 78.4% (80/102 cases), the cure rate of pneumothorax was 81.5% (75/92 cases) and for empyema, the cure rate was 92.9% (26/28 cases). (3) SAFETY: during operation the ECG, SaO(2), BP, R, P of 98 patients did not show important changes. In 345 patients, 4.3% (15/345) complained a fransceis cheot stiffin. 7% (24/345) showed sinus tachycardia., Conclusions: (1) Through thoracoscopy, we can observe the whole pleural cavity and can take biopsy specimen under direct observation. It is a good method to get the etiological diagnosis in cause-underdetermined pleural diseases. (2) It is effective and practical to treat difficult pleural effusion, the obstinate pneumothorax, or one that is not suitable for thoracic surgery. (3) It is safe and simple to apply the thoracoscopy under local anesthesia.

Objective: To describe an uninfective hypopyon phenomenon after vitrectomy (pseudohypopyon)., Methods: 1,250 cases (consecutive cases) who had undergone vitrectomy were collected. Among them, 418 cases were vitreous hemorrhage due to various disorders. Pseudohypopyon was found in 7 cases. All of them were the patients with vitreous hemorrhage., Results: Pseudohypopyon occurred in 3-5 days after vitrectomy, like precipitation of muddy sand; systemic and local treatment of antibiotic and steroid were not effective, intraocular centesis for smear and culture could not find any germs; and the patients were painless and no irritation in the eyes. The relatively effective method for this kind of hypopyon was paracentesis of anterior chamber and its natural absorption. After a follow-up period of 3 months, 3 cases obtained the vision above 0.05., Conclusions: Pseudo-hypopyon might happen after vitrectomy for vitreous hemorrhage, and it should be differentiated from infective ophthalmitis.