Macular oedema affects 29% of diabetic patients and is the main cause of visual impairment. Previous studies show that diffuse macular oedema carries a particularly poor prognosis despite laser photocoagulation.
Conditions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Diabetes Mellitus 2) Clinically significant macular oedema as defined by the ETDRS studies 3) Visual Acuity worse than 6/12 (0.3 LogMAR) 4) OCT thickness greater than 300um Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range
Exclusion criteria
Exclusion criteria: 1) Retinal pathology other than that due to Diabetes 2) Glaucoma, ocular hypertension or known steroid responder 3) Previous laser treatment 4) Only eyes 5) Visual acuity better than 6/12 6) Proliferative diabetic retinopathy 7) Unable to attend for follow up 8) Unfit for a local anaesthetic (LA) procedure 9) Unable to consent fully
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: Does intravitreal triamcinolone 1 month prior to focal laser improve the visual outcome (using ETDRS charts) compared with focal laser alone in patients with diabetic clinically significant macular oedema (CSMO). ;Secondary Objective: The effect of treatment on macular thickness using ocular computerised tomography (OCT) and vascular leakage on fluorescein angiography (FFA).;Primary end point(s): Following laser treatment patients will be seen at 3 monthly intervals. Expected duration of participation: 2 Years Primary outcome measures at these time points will be changes in visual acuity (using ETDRS charts), near vision and contrast sensitivity. | — |
Countries
United Kingdom