Objective　To evaluate the therapeutic effects of trabeculectomy through two right angle incisions.Methods　Trabeculectomy was performed on 23 cases (25 eyes)through two right angle incisions.Results　All operated eyes formed functional fistulizing blebs and their intraocular pressure were nomal in the follow up periods of 3～10 months.Conclusion　The trabeculectomy through two right angle incisions is better than traditional trabeculectomy and similar to clear-cornea trabeculectomy with the merits of simplicity and fewer complications.

Objective:To establish a random amplified polymorphism DNA(RAPD) method for classification of origin fungi of the Chinese traditional medicine Red Kojic. Methods:The genome DNA of 7 ordinary species Monascus including M. purpureus and a strain of Aspergillus terreus were extracted by CTAB. The content of DNA was assayed doubly by fluorescence intensity of ethidium bromide (EB) and spectrometer. Amplification products were detected by agarose gel electrophoresis and clustering analysis by PHYLIP 3.5c. Results:A characteristic pattern was produced depend on one of the 10 primers screened from 60 random primers, and the genome was amplified. The diversities of the fingerprint patterns of Monascus was obvious, by which Monascus can be distinguished easily. The results were consistent with that of morphologic study. Conclusion:RAPD is a new assay technique. It can be used to classify and identify of Monascus fungi. [

Objective To explore the feasibility and effectiveness of otoacoustic emission (OAE) in hearing screening for preschool children .Methods A total of 616 preschool children aged 3～6 (mean age 4 .6 years old) were included in this study .All the subjects received transiently evoked otoacoustic emission (TEOAE) test by trained personnel .The children who failed the hearing screening received diagnostic examination in the hearing ex-amination center .Results Of 616 children ,66 (10 .71％ ) failed the hearing screening and 16 children received audi-ological assessment .In these 16 children ,8 had otitis media with effusion (5 with mild conductive hearing loss ) ,5 had impacted cerumen ,3 had normal hearing ,and none had sensorineural hearing loss .Conclusion OAE can be used effectively in the hearing screening for preschool children .But how to improve the referral rate of children who failed the hearing screening needs further discussion .