Retina Clinical Trials

The intra-vitreous injection (IVT) of anti-VEGF (vascular endothelial growth factor) is currently the standard treatment for retinal neovascularization. The VEGF stimulates endothelial cells' proliferation and migration. It also increases microvascular permeability. If the VEGFs have proven their efficiency in the decrease of choroidal neovascular proliferation, their impact of the head ...

The treatment of neovascular age-related macular degeneration (ARMD) is a major issue of public health. The therapeutic arsenal has widely grown throughout the years with the emergence of intra-vitreous anti-angiogenic treatments, under different surveillance protocols. The "PRN" surveillance (pro re nata: an on-demand treatment with monthly follow-up) allows a faster ...

To evaluate the effectiveness of subthreshold laser treatment on retinal sensitivity in patients with reticular pseudodrusen and incipient Geographic Atrophy (GA) secondary to Age-Related Macular Degeneration (AMD). Secondary objective is to investigate changes in best-corrected visual acuity, atrophy progression and safety.

Pupil light reflex (PLR) will be measured by a chromatic multifocal pupillometer in response to short and long wavelength light with small spot stimulus in 76 points of the 30 degree visual field. A computerized infrared video pupillometer will be used to record changes in pupil diameter in response to ...

The purpose of this study is to determine if the reparative cells of blood vessels, called endothelial progenitor cells (EPC's) are defective in people with diabetes. Diabetic retinopathy (DR) is an eye disease related to diabetes. It can cause blurred vision and possible bleeding in the blood vessels in the ...

Diabetic retinopathy (DR) is a disabling microvascular complication. Despite recent advances using pharmacotherapy, a cure for DR has yet to be realized. Thus, a conceptual and technical breakthrough to identify novel targets, and a strategy to cure this complication is paramount. We believe that the recent clinical evidence from large ...

Vascular complications due to diabetes mellitus (DM) are the result of sustained vascular injury with insufficient vascular repair. In chronic diabetes, vascular reparative mechanism can be lost resulting in development of microvascular complications (MVC), such as diabetic retinopathy (DR). We assessed the reparative function of progenitor cells that circulate in ...

This study evaluates the effect of melatonin 4 mg on circadian rhythm and visual function of patients with diabetes mellitus. Half of the patients will receive melatonin (arm-1) and the other half will receive placebo (arm-2), both groups in 3 weeks. After a week of washout, the patients will cross ...

The purpose of this study is to measurement of optic nerve sheath diameter in children without intracranial pressure increase and determine the average optic nerve sheath diameters for healthy children. For that, between 4 and 18 years old children will be selected. After taking of measurements, following parameters will be ...

The pathophysiology of Central Retinal Vein Occlusion (CRVO) is incompletely understood, but a significant slow-down in blood flow, caused by various predisposing factors, results in the release of VEGF, leading to the breakdown of the blood-retinal-barrier and finally to macular edema. The level of VEGF has been also correlated with ...