简介：资料病例1男性,65岁。因右侧鼻腔流臭脓涕8个月,门诊以＂右全组鼻窦炎＂收入院。2年前因鼻咽癌（T3N1M0）行60Co放射治疗（以下简称放疗）,剂量为70Gy。CT扫描显示：右侧鼻腔、上颌窦、筛窦密度增高,上颌窦内侧壁骨质吸收（图1）。根据病史、症状、体征,结合影像学检查,诊断为右侧全组鼻窦炎,拟行鼻内镜手术。手术在全身麻醉下进行。

简介：·AIM:Toobtainwideningofapotentiallyoccludableangle,inaccordingtoKanski’sindications,throughpreventiveNd:Yaglaseriridotomy.Theobservationalstudywasperformedbyusinggonioscopyfortheselectionandfollow-upof1165treatedeyesandexploitingShaffer-Etiennegonioscopicclassificationasaquality/quantitytestoftheanglerecession.·METHODS:BetweenSeptember2000andJuly2012,586patientswereselectedattheOutpatients’OphthalmologicalClinicofthePoliclinicoUmbertoIofRomeinordertoundergoNd:Yaglaseriridotomy.AGoldmanntypecontactlens,Q-switchedmode,2-3defocus,and7-9mJintensitywith2-3impulsedischargeswereusedforsurgery.·RESULTS:Fromasearlyasthefirstweek,awhole360°anglewideningwereevidentinthepatients,thusshowingthesuccessofNd:Yaglaseriridotomyinsolvingrelativepupilblock.Theangleremainednarrowby270°in14eyesonly,despiterepetitionsoffurthertreatmentwithlaseriridotomyinadifferentpartoftheiris,twicein10eyesandthreetimesin4eyes.·CONCLUSION:Nd:YaglaseriridotomyrevealeditselfasbeingasafeandeffectivetreatmentinwideningthosecriticalShaffer-Etiennegrade1and2potentiallyoccludableangles.