Objective　To explore the clinical characters and distributions of the endogenous uveitis.Methods　Both clinical examinations and immunologic investigations were performed in 354 patients with cases of uveitis within six years.Results　Among 354 uveitis, the anterior uveitis were 165 cases(46.6%), the posterior uveitis 118 cases (33.3%),the pan-uveitis 57 cases(16.1%) and the intermediate uveitis 14 cases(4.0%). The blind rate among the patients was 5.9%, the main causes were proliferative retinopathy, secondary glaucoma and complicated cataract. 167 cases(47.2%)of patients were related to the systemic changes, the bone-joints disease, Vogt-Koyanagi-Harada syndrome, Behcet syndrome and toxoplasma infection were common.Conclusion　Complete clinical and immunologic examinations can ensure the defined diagnosis and proper treatment for the patients with endogenous uveitis.

Objective　The retrospective case-control study was applied to investigate the crossing characteristics and the distance between the disc and the first crossing site in super-temporal branch retinal vein obstruction.Methods　Fifty-three cases of branch retinal vein obstruction and 53 cases of controls were collected to observe the artery-vein crossing characteristics and to measure the distance between the disc and the first crossing site.Results　The average distances of super-temporal and infer-temporal branch in case group were significantly different. The distance of the super-temporal branch in case group was significantly different from that in the control group. The distances of the super-temporal branch and infer-temporal branch were not significantly different in control group. The numbers of the arteries over the veins in the super-temporal branch in case and control group were significantly different. Conclusion　The mechanism of super-temporal branch retinal vein obstruction is related with the near distance between the disc and the first crossing, and is also related with the numbers of the arteries over the veins in the crossing site.

Objective To observe the clinical features,the complications and treatment effects of intermediate uveitis. Methods The clinical data of 36 patients(66 eyes)with intermediate uveitis were retrospectively analyzed,including the clinical features,fundus fluorescein angiography(FFA)features,complications,treatment effects and prognosis.The patients,21 males and 15 females,aged from 8 to 70 years,with the mean age of 34.8 years.There were 30 eases with bilateral lesions and 6 cases with unilateral lesions. Results The main clinical manifestation were vitreous opacity.peripheral retinal venous lesions,optic disc edema,macular edema and posterior subcapsular cataract.The results of FFA showed that peripheral retinal venous lesions,optic disc hyperfluorescence,cystoid maeular edema and retinal vein staining.After the treatment.the visual acuity of 31 cases(60 eyes,90.9%)were improved,4 cases(5 eyes,7.6%)were stable and 1 case(1 eye,1.5%)was worsening.The main complications were cystoid macular edema,posterior subcapsular cataract and vitreous hemorrhage which Ieads to visual damage. Conelusions Intermediate uveitis was a common bilateral and chronic progressive intraocular inflammation,the anterior vitritis,pars plana and peripheral retinal vascular changes were mainly involved.Early diagnosis and proper treatment may prevent the permanent visual damage.

Objective To evaluate the clinical characters of retinal arterial macoraneurysms. Methods The routine eye examination and fundus fluorescein angiography in 15 cases with macroraneurysms were reviewed. Results The macroaneurysms in the first,second and third bifurcation were 6,7 and 2 cases respectively.The macroaneurysms in the superio temporal and inferio temporal artery were 4 and 10 cases respectively.There was on case in both superio and inferio temporal artery.The number of macroaneurysms was single in unitary form were 13 cases.The diameter of the macroaneurysms were between 250～500 ?m. Conclusions The FFA is helpful in diagnosis of macroaneurysms,and treatmnet of laser photocoagulation for the bleeding endangering the macular area.

Objective To explore the clinical manifestations and the characteristics of images of indocyanine green angiography (ICGA) and fundus fluorescein angiography(FFA) of multifocal choroiditis. Methods Eight patients (10 eyes) with multifocal choroiditis were gathered. The clinical manifestations and the images of ICGA and FFA were analyzed. Results Foci of multifocal choroiditis were found in posterior pole and peripheral areas of ocular fundi of all of the 10 eyes. The images of ICGA revealed hypofluorescence in focal area. The images of FFA showed hypofluorescence at the early phase and fluorescein leakage at the late phase in the active focus, and fluorescein staining and window defect fluorescence in the inactive focus. Conclusions The clinical manifestations of multifocal choroiditis varied with disease course, location and numbers of the lesions. ICGA and FFA can show the development of the disease clearly, which may guide the treatment.

Through random sampling,a total of 300 residents of Beijing Changping Ming Tombs Town were selected for home-based questionnaires.The smoking rate of interviewed residents was 21.4％ (53/248).The rate in men (42/125,33.6％ ) was bigber than that in women ( 11/123,8.9％ ).The rate in those with higher education was lower than that in those with lower educational level ( x2 =27.12,P ＜ 0.05 ).The population awareness of tobacco hazards was 80.6％ (200/248).Awareness in smokers was lower than the average awareness of ex-smokers and nonsmokers ( x2 =5.07,P ＜ 0.05 ).The higher the education level,the higher the awareness of tobacco health hazards ( x2 ≈ 19.72,P ＜ 0.05 ).There were differences in awareness among different age groups (x2 =13.37,P ＜ 0.05 ).