Active clinical trials for "Macular Edema"

The primary objective of the study is to investigate the safety and tolerability of intravitreal (IVT) REGN910-3 and IVT REGN910 in patients with neovascular age-related macular degeneration (AMD), and separately in patients with diabetic macular edema (DME).

Currently, two similar medications are available for injection into the eye to treat a variety of eye diseases. These medications are called ranibizumab (Lucentis) and bevacizumab (Avastin). They both have a similar mechanism of action and work equally well, however only ranibizumab was designed for use in the eye. It is significantly more expensive per injection than bevacizumab (by a factor of roughly 40x). In published studies trends have been noted towards an increased rate of systemic side effects such as heart attacks and strokes. This is presumably due to absorption of the drug(s) from the eye into the bloodstream, however this has never been shown before. The purpose of the investigators study was to compare the bloodstream levels of bevacizumab and ranibizumab at various time points after injection into the eye. This required the creation of a sophisticated assay to measure blood levels of the drugs.

This is the first randomized controlled trial looking into post-injection rinse volume of standard ophthalmic eyewash and its affect on patient comfort up to 72 hours after injections.

Diabetic macular edema refers to swelling (fluid accumulation) in the center of the retina. The retina is like the film of a camera and is located in the back of the eye. This condition can develop in diabetics where swelling results from leaking of fluid from the blood vessels of the eye, into the center of the retina, the macula. If left untreated, this can affect central vision. The current standard treatment for diabetic macular edema includes medications injected directly into the eye (intravitreal injections) and laser eye treatment. The drugs that are injected directly into the eye are known as anti-Vascular Endothelial Growth Factor (anti-VEGF) agents which help to reduce the leaking. This includes bevacizumab (Avastin®) and ranibizumab (Lucentis®). However, some patients do not respond well to these anti-VEGF treatments will be given the option of switching to an another class of medications, called steroids. Triamcinolone acetonide is one of these steroids and is also injected directly into the eye. These steroids will help reduce inflammation and possibly as a consequence, reduce swelling in the eye. The purpose of this study is to determine what cellular factors affect a patient's treatment response (amount of swelling reduction) following triamcinolone acetonide intravitreal injections for diabetic macular edema.

Imaging of retinal morphological changes with time secondary to laser treatment as assessed with high definition optical coherence tomography (OCT). Furthermore changes in retinal function as an effect of treatment will be documented by visual acuity testing using ETDRS charts and microperimetry. The change in vascular leakage will be assessed by performing fluorescein angiography, flare counts will be performed monthly.

Purpose: To evaluate the effects of anterior chamber paracentesis, brimonidine and oral acetazolamide to reduce intra-ocular pressure (IOP) variations after intravitreal bevacizumab injection (IVBV). Methods: 47 patients scheduled for IVBV (1.5 mg / 0.06 ml) will be randomly assigned to a pre-treatment 1 hour before IVBV with either 250 mg oral acetazolamide (DIA, 9 eyes), anterior chamber paracentesis immediate after IVBV (PAR, 15 eyes), topic brimonidine tartarate 1 hour before IVBV (BRI, 14 eyes), or no pre-treatment IBVB (CTR, 9 eyes). IOP will be measured 90 minutes before injection (baseline), just before injection, and at 3, 10, 20 and 30 minutes after the procedure.

Retinal optical coherence tomography (OCT) is an established technology which enables a detailed cross-sectional visualization of the retinal micro-anatomy, and an objective measurement of its thickness in-vivo. Multifocal electroretinogram (MfERG) measures function of the central retina. Both technologies are relatively new and they provide complimentary to each other information on retinal anatomy and function. The aims of this study is to establish normal ranges for OCT and mfERG measurements related to age, gender and reproductive factors such as parity and the use of contraception in Norwegians; to assess the presumably healthy central retina with the use of anti-inflammatory medication with relation to age and sex ; to study the frequency and extent of retinal thickening and change in retinal function in patients with anterior uveitis not complicated with macular edema; to assess whether the presence of the HLA-B27 haplotype or uveitis recidive affects macular thickening/function in uveitis.

The aim of the study is to explore the effect of a curcumin formulation in combination to intravitreal dexamethasone therapy in patients with diabetic macular edema on morphological retinal characteristics and retreatment times.

This study will evaluate the efficacy and safety of Betamethasone Microsphere (DE-102) for macular edema following branch retinal vein occlusion

This study will evaluate the efficacy and safety of Betamethasone Microsphere (DE-102) for diabetic macular edema.