AIM:To establish a nomogram model to predict the effect of serum ferritin on diabetic retinopathy and evaluate the model.METHODS:A total of 21 variables, including ferritin, were screened by univariate and multivariate regression analysis to determine the risk factors of diabetic retinopathy. A nomogram prediction model was established for evaluation and calibration.RESULTS:Ferritin, duration of diabetes, hemoglobin, urine microalbumin, regularity of medication and body mass index were included in the nomogram model. The consistency index of the prediction model with serum ferritin was 0.813(95%CI: 0.748-0.879). The calibration curves of internal and external verification showed good performance, and the probability of the threshold suggested by the decision curve was in the range 10% to 90%. The model had a high net profit value.CONCLUSIONS:Serum ferritin is an important risk factor for diabetic retinopathy. A new nomogram model, which includes body mass index, duration of diabetes, ferritin, hemoglobin, urine microalbumin and regularity of medication, has a high predictive accuracy and could provide early prediction for clinicians.

Objective To develop an auxiliary recovering device for prone position nursing after the retina vitrectomy in order to improve comfort and treatment compliance.Methods The device was made of stainless steel,and consisted of a base,pulleys,supporting rods and a placing case.Totally 40 patients receiving retinal detachment operation were divided into an experimental group and a control group.The patients in the experimental group applied the auxiliary device and the ones in the control group underwent conventional nursing,and then a 2-week observation was executed on the prone time,overall satisfaction and adverse response after the operation.Results The device behaved well in prone time,patient comfort and satisfaction,and the experimental group gained advantages over the control group in prone time,relieving muscle pains,arthralgia,poor breath,anxiety and insomnia.Chi-square test proved the experimental group had the patient satisfaction significantly enhanced when compared with the control group (P＜0.05).Conclusion The device can be used for auxiliary nursing after retinal detachment operation with simple structure,easy operation and high comfort,and thus is worthy promoting practically.

Objective To investigate the psychology , personality and behavior characteristics of the patients with acute angle -closure glaucoma , so as to explore the clinical significance of psychological factor in the prevention and treatment of the disease . Methods Measurement and analysis were made in 116 patients with acute angle-closure glaucoma , 56 patients with chronic angle-clo-sure glaucoma, 120 patients with cataract and 50 normal subjects, with questionnaire survey by using SCL-90, A style behavior and Ey-senck Personality Questionnaire (EPQ).Results In SCL-90, the scores of depression and anxiety in the patients with acute angle-clo-sure glaucoma were higher than those of the other 3 groups, with statistical significance(P<0.05).There was no statistical significance in the scores of 7 symptoms (somatization, obsessive-compulsive, interpersonal sensitivity, hostility, phobic anxiety, paranoid ideation, psychoticism), when compared with those of the patients with chronic angle-closure glaucoma.However, statistical significance could be noted, when compared with those of the cataract and normal subjects (P<0.05).In the evaluation of questionnaire survey of A-style behavior , the scores of TH in the patients with acute angle-closure glaucoma were significantly higher than those of the other 3 groups (P<0.05).However, there was no statistical significance in the scores of CH , as compared with those of the other 3 groups. The scores of TH+CH were closely identical to those of the patients with chronic angle -closure glaucoma , without statistical signifi-cance, but they were significantly higher than those of the cataract and normal subjects (P<0.05).In EPQ questionnaire survey, no statistical significance could be seen in the scores of nervousness , introversion and extraversion , nervous emotion and masking , when comparisons were made between the patients with acute angle-closure glaucoma and chronic angle-closure glaucoma .However , there were significance differences in the scores of introversion and extraversion as well as nervousness in the patients with acute angle -closure glaucoma, as compared with those of the cataract patients and normal subjects , with statistical significance (P<0.05).Conclusion Psychological factor seems to be obviously associated with the onset of acute angle -closure glaucoma .The patients with acute angle-clo-sure glaucoma mainly display A-style personality and neurotic tendency .