Active clinical trials for "Macular Edema"

The purpose of this study is to determine if additional panretinal photocoagulation of ischemic areas following retinal vein occlusion (RVO) may reduce the rate of recurrence and allow longer treatment intervals in anti-Vascular Endothelial Growth Factor (VEGF) treatment following the "trea-and-extend" scheme.

Cystoids macular edema (CME) is one of the most common causes of low vision due to uveitis. The treatment for reducing the intra-ocular inflammation can decrease the macular edema. In some patients, CME persists even after inflammation control, and additional treatment is needed for better vision. Oral steroid, periocular and intravitreal Triamcinolone are the principles in treatment, but some complications like cataracts and increased ocular pressure have been seen. Diclophenac is a non-steroid anti-inflammatory drug that improves the vision and decreases the macular thickness by slowing down the prostaglandin E2 (PGE2) ending in vascular endothelial growth factor (VEGF) inhibition. In this study, the investigators are going to compare the therapeutic affect of intravitreal Diclophenac and Triamcinolone in persistent uveitic cystoids macular edema. Since diclophenac is a cheap and accessible drug in all curative centers it could be applied instead of Triamcinolone.

The development or worsening of macular edema following full scatter photocoagulation is a well recognized occurrence. However, there is limited literature in this regard. The purpose of this study is to determine the incidence and extent of macular edema following scatter laser photocoagulation surgery using optical coherence tomography (OCT) in eyes without macular edema prior to scatter laser photocoagulation and to explore whether the incidence and extent of macular edema varies according to the number of sittings included in the treatment regimen. Study eyes will receive one of two types of scatter photocoagulation with results compared through use of OCT and photography images, as well as visual acuity testing.

Prospective randomized clinical trial comparing Laser Alone v. Laser and posterior sub-tenon injection of triamcinolone acetonide for primary and refractory clinically significant macular edema.

A prospective randomized trial, to evaluate post-injection comfort measures comparing topical NSAID (nepafenac 0.3% suspension) and patching.

The investigators aim to evaluate how different timing of anti-VEGF intravitreous injections affect visual acuity (BCVA) in patients with diabetic macular edema who are undergoing cataract surgery; and to evaluate how different timing of anti-VEGF intravitreous affect OCT CSF thickness and total number of postoperative injections in patients with diabetic macular edema who are undergoing cataract surgery.

This study is a double-blind randomized clinical trial in Diabetic patients (type 2) over 18 years of age who have diabetic macular edema with involvement of the central 1 millimeter (central macular thickness is more than 300 μm) and BCVA 20/30 or less who visit the retina clinic of Labbafinejad Hospital Are studied. (In patients with bilateral macular edema, only one eye is included in the study.) Complete ocular examinations (including best corrected visual acuity - anterior segment - intraocular pressure - dilated pupil funduscopy with severity of diabetic retinopathy), optical coherence tomography (OCT), EDI-OCT( Enhanced Depth Imaging Optical Coherence Tomography ) - as well as Optical coherence tomography angiography (OCTA ) are performed for all patients at baseline. Blood tests are also taken from patients for fasting blood sugar and HbA1C. Patients are then randomly divided into two groups. The first group is treated with injections of 1.25 mg of intravitreal bevacizumab monthly for 3 months (months 0, 1 and 2) with topical drops of Timolol twice a day and Dorzolamide twice a day. For the second group (control group), 3 injections of 1.25 mg of intravitreal bevacizumab monthly with artificial tears (twice a day as a placebo) are prescribed. Patients in both groups are visited 1 month after the third basic intravitreal bevacizumab (IVB) injection and complete ophthalmology examinations are performed and central thickness of macula is recorded based on the patient's OCT as well as the need for IVB re-injection. EDI (Enhanced Depth Imaging)-OCT and OCTA are performed again for all patients.

In this prospective, open-label clinical study is to investigate the behavior of the retinal functions during development of diabetic macular disease (DME) under the influence of Lucentis. Measurements with the multifocal electroretinogram (ERG) and microperimetry is used here as an objective criteria to information about the retinal function obtain.

Posterior sub-tenon's injection of bevacizumab decreased diffuse diabetic macular edema

In retinal vein occlusion, predictive factors for visual outcome after ranibizumab treatment have not been evaluated comprehensively. Therefore, we have planned to analyze predictors for visual outcome from a viewpoint of electrophysiology and biomarkers besides morphological features by SD-OCT.