Objective To evaluate the relationship between retinal nerve fiber layer (RNFL)thickness measured by optical coherence tomography (OCT) and the refractive error and age using partial correlation analysis. Methods A total of 106 right eyes of healthy subjects, comprising 33 eyes with high myopia ( spherical equivalent [SE] < - 6. 0 D) , 60 eyes with moderate myopia ( - 6. 0 D ≤ SE < - 3.0 D) and 13 eyes with low myopia and emmetropia ( -3.0 D≤SE <0. 5 D) were analyzed in this cross-sectional study. Mean clock hour, quadrant and total average RNFL thicknesses were measured by OCT and compared among the three groups respectively. Associations among RNFL measurements and spherical equivalent and age were evaluated by partial correlation analysis. Results The mean RNFL thickness measurement in high myopia(95.74 ± 13.46) μm was significantly lower than that in moderate myopia group ( 101.43 ± 11.53 ) μm, low myopia group and emmetropia group ( 108. 06 ± 8.42) μm ( P < 0. 05 ). Positive correlations were found between RNFL measurements at 1, 5, 6 and 12 o'clock, superior and inferior quadrant, and total average RNFL and SE ( r = 0. 36,0. 33,0. 43,0. 29,0. 28,0. 39, P < 0. 01, r = 0. 22,P <0. 05), while negative correlations were found between RNFL measurements at 8, 9 and 10 o'clock and temporal quadrant and SE ( r = -0.21, P <0.05, r = -0.36, P <0.01; r = -0.24, P <0.05; r = -0. 30, P <0. 01 ). RNFL measurements at 2, 3, 4 and 6 o'clock and nasal and inferior quadrant varied with age ( r = -0.20,-0.20,-0.20,P <0.05,r =0.31,P <0.01). Conclusions RNFL measurements varied with the refractive error and age. Analysis of RNFL thickness in the evaluation of glaucoma should always be interpreted with reference to the refractive status and age. In the same time, the location of the RNFL should be noted.

Objective To follow-up the patients with successful posterior segment intraocular foreign body removal.Methods Medical records of consecutive cases with posterior segment intraocular foreign body that were successfully removed between June 2005 and June 2008 were retrospectively reviewed.Twenty-three patients(23 eyes)were included in the series.Results Followed up 3-36 months All the patients underwent pars plana vitrectomy for posterior segment intraocular foreign body removsl,4 patients (4 eyes)experienced rhegmatogenous retinal detachments that were managed with good long-term visual outcomes.Conclusions Rhegmatogenous retinal detachments may occur following successful removal of posterior segment intraocular foreign body in several months after initial management.These rhegmatogenous retinal detachments can be successfully managed with a variety of methods,depending upon the extent and location of the detachments and causative break.Therefore,it is clinically important to perform a long-term follow-up in patients after successful posterior segment intraocular foreign body removal.

Objective To analyze the clinicopathological features and prognosis of polyomavirus nephropathy (PyVN) after kidney transplantation. Methods Clinical data of 44 patients who were diagnosed with PyVN after kidney transplantation were retrospectively analyzed. The causes of puncture and the time of pathological diagnosis were analyzed. Histological grading was carried out according to Banff 2018 classification. Clinical data and pathological characteristics of patients at all grades were statistically compared. BK viral DNA loads in the blood and urine were measured and renal allograft function were assessed. Clinical prognosis of all patients was compared among different groups and the risk factors affecting clinical prognosis were also analyzed. Results The time interval between pathological diagnosis of PyVN and kidney transplantation was 16(8, 29) months, and the increase of serum creatinine level was the main cause for puncture. Among 44 patients, 19 cases were classified as grade ⅠPyVN, 21 cases of grade Ⅱ PyVN and 4 cases of grade Ⅲ PyVN, respectively. Under optical microscope, there was no significant difference in the positive rate of virus inclusion bodies among different groups (P=0.148). Inflammatory cell infiltration, interstitial fibrosis and polyomavirus load in grade Ⅱ PyVN patients were all more or higher than those in grade Ⅰ counterparts. Inflammatory cell infiltration and polyomavirus load in grade Ⅲ patients were more or higher than those in grade Ⅰ counterparts. Polyomavirus load in grade Ⅲ patients was more or higher than that in grade Ⅱ counterparts. The differences were statistically significant (all P < 0.05/3). Upon diagnosis, BK viral DNA load was detected in the blood and urine of 39 patients. Among them, 38 patients were positive for BK virus in the urine and 30 patients were positive for BK virus in the blood. The serum creatinine level upon diagnosis was higher compared with that at postoperative 1 month. The serum creatinine level at the final follow-up was significantly higher than that upon diagnosis. The differences were statistically significant (P < 0.001, P=0.049). There was no significant difference in the serum creatinine level among patients with different grades of PyVN at postoperative 1 month (P=0.554). The serum creatinine level of patients with grade Ⅱ PyVN upon diagnosis was significantly higher than that of those with grade Ⅰ PyVN (P=0.007). The 1-, 3- and 5-year cumulative survival rates of renal allografts were 95%, 69% and 62%, respectively. The survival rates of renal allografts significantly differed among patients with different grades of PyVN. The higher the grade, the lower the survival rate (P=0.014). Univariate and multivariate Cox's regression analyses prompted that intrarenal polyomavirus load and serum creatinine level upon diagnosis were the independent risk factors for renal allograft dysfunction (all P < 0.05). Conclusions PyVN mainly occurs within 2 years after kidney transplantation. Clinical manifestations mainly consist of increased serum creatinine level, BK viremia and BK viruria. Postoperative routine monitoring of BK virus contributes to early diagnosis and protection of renal allografts. Banff 2018 classification may effectively predict the prognosis of renal allografts.

This review summarizes the clinical data of one pediatric liver transplant recipient and two adult kidney transplant recipients with posterior reversible encephalopathy syndrome(PRES)at Tongji Hospital of Huazhong University of Science & Technology.The relevant clinical characteristics of recipients are discussed for providing reference for clinical diagnoses and treatments.