Diabetic macular edema after vitrectomy
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age >= 18 years old; No gender limit. 2. diagnosed as type 2 diabetes mellitus; Study eyes were diagnosed with PDR and underwent PPV, silicone oil removal, or silicone oil removal combined with cataract extraction and intraocular lens implantation >= 5 weeks after treatment. 3. The BCVA ? 20/25 (0.8) (Snellen visual acuity) of the study eyes was ? 20/25 (0.8). OCT scan CRT > 250 µm; 4. Informed consent was obtained from the patient to receive intravitreous injection of dexamethasone implant in the study eye; And willing to accept regular follow-up; 5. There was no history of glaucoma and related surgical history, and the intraocular pressure of the study eyes was <= 21 mmHg (1 mmHg = 0.133 KPa) without the use of intraocular pressure lowering drugs. 6. Nearly 2m patients had not received intravitreal injection of anti-VEGF drugs; He did not receive intravitreal injection of dexamethasone implants, triamcinolone acetonide (TA) and other glucocorticoid drugs within 6 months. He had not received subconjunctival or retrobulbar injection of glucocorticoids in the last 2m.
Exclusion criteria
Exclusion criteria: 1. Complicated with severe heart disease, hypertension, abnormal liver and kidney function, abnormal coagulation function, etc., requiring specialized hospitalization; 2. Aphakic eyes, IOL eyes and anterior chamber IOL patients with incomplete posterior capsule and/or anterior capsule; 3. The study eyes had high myopia, refraction spherical equivalent -6>=.0DS; 4. Other serious eye diseases, such as corneal disease, cataract, glaucoma, uveitis, ocular hypertension, vitreous opacity and hemorrhage, optic nerve disease, age-related macular degeneration, retinal vein occlusion, pathological myopia fundus changes, rhegmatogenous retinal detachment and stage 3 or 4 macular hole, etc. 5. The study eyes were planned to undergo cataract surgery within six months; 6. Pregnant and lactating women; 7. High sensitivity constitution.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| best corrected visual acuity; | — |
Secondary
| Measure | Time frame |
|---|---|
| intraocular pressure;foveal avascular zone, FAZ;Choroidal thickness; | — |
Countries
China
Contacts
The second hospital of Dalian Medical University