Director Chen: How to know whether there is diabetic retinopathy early?

2022-05-10 0 By

How to screen for diabetic retinopathy Early diagnosis and treatment of DR can significantly reduce the risk of blindness, and some PATIENTS with DR can be asymptomatic. Therefore, doctors must pay attention to and actively carry out DR screening and timely management.Screening according to the results of fundus examination, through fundus examination to observe the fundus microvessels, retina, choroid, vitreous and optic nerve, the main methods: 01 dilated pupils fundus examination significance: check whether retinopathy occurs.It is recommended to conduct dilated pupil fundus examination once every six months, and once every three months for patients with poor blood glucose control.Note: After dilated pupils, patients will have temporary blurred and photophobia. They can temporarily wear sunglasses and recover after 4 ~ 6 hours.02 Significance of fundus fluorescein angiography: Fluorescein angiography is very helpful in displaying blood vessels in the fundus, which can find lesions invisible to the naked eye and determine whether laser treatment is needed in the next step.Precautions: People with allergic constitution, cardiac insufficiency, and serious liver and kidney function damage should be careful when doing angiography, as allergic reactions may occur.Significance of 03B ultrasonography: B-ultrasonography can help judge whether there are new blood vessels and retinal detachment in the fundus.04OCT (optical correlation tomography) examination significance: whether there is macular edema.If the examination results show edema in the macula, additional special treatment is required.Patients with diabetic retinopathy may have no obvious clinical symptoms, so it is important to have a regular fundus examination.DR screening is an important and cost-effective aspect of diabetes management. Early diagnosis and treatment can significantly reduce the incidence of low vision and blindness.For different types of diabetes, screening starts at different times. Diabetes guidelines recommend: 1. For type 1 diabetes diagnosed before puberty or during adolescence, screening is performed at the onset of puberty (after 12 years of age) and once a year thereafter;Patients with type 22 diabetes should be screened at the beginning of diagnosis and followed up once a year.The diabetic without retinopathy should be examined once a year;In addition, due to the strong correlation between DR and diabetic nephropathy, it is recommended that patients with type 2 diabetes develop diabetic nephropathy should be screened for DR.3 for diabetes complicated with pregnancy (non-gestational diabetes), fundus screening should be performed before pregnancy or the first three months of pregnancy.Follow-up every 3 months;4 If diabetic retinopathy is detected, the patient needs to have a fundus examination every 3 months to 6 months, and perform fundus angiography in time.[1]. Diabetes Society of Chinese Medical Association.Chinese guidelines for prevention and treatment of type 2 diabetes mellitus (2020 edition)[J]. International Journal of Endocrinology and Metabolism, 201,41(05):482-548.[2]Li Xiaorong, Yang Qianhui.Chinese journal of experimental ophthalmology,2020,38(09):795-798.[3] Chinese medical association diabetes branch retinopathy section.[J]. Chin J diabetes,2018,10(4) : 241-247. (in Chinese)