Active clinical trials for "Retinal Diseases"

premature infants who had a history of intravitreal injection of (Ranibizumab) not less than one year were examined for refractive state and biometry

A prospective observational study of the incidence of treatment-requiring ROP (TR-ROP), at a national level, in Greece.

This study is to evaluate the clinical performance of VeriSee DR for DR screening from color fundus photography images in patients with diabetes mellitus. The sensitivity and specificity of VeriSee DR's automated image analysis for screening the diabetes retinopathy will be determined.

The purpose of this study is to characterize type 2 diabetic patients with initial alterations of diabetic retinopathy (DR) based on 3 different phenotypes previously identified and different patterns of progression in order to correlate this data with genetic information.

Analysis of vitreous proteins in patients undergoing pars plana vitrectomy for proliferative diabetic retinopathy

To characterise phenotypes of Non Proliferative Diabetic Retinopathy (NPDR) progression using multimodal testing/imaging procedures.

This study attempts to test capillary responses to various challenges without the need for iontophoresis (electrical current).

The purpose of this study is to identify the severity level distribution at the moment of diagnosis, in diabetic patients with macular edema from a Mexico City sample, and to identify the rate with severe macular edema that needed immediate treatment.

The primary purpose was to assess, in diabetic patients without diabetic retinopathy and control subjects, color vision, contrast sensitivity, electroretinography, and flicker-induced vasodilatation using the Dynamic Vessel Analyzer, in order to specify the earliest impaired retinal cells in diabetes, and gain more insight into diabetic retinopathy pathogenesis.

To evaluate the differences in retinal function as measured by ERG in diabetics with and without retinopathy 2) the ability of the Chromatic Electroretinogram (chERG) to detect changes in global retinal function following treatment with Carotenoid Vitamins supplement in patients with diabetic retinopathy (DR). 3) the ability of the Full Field flicker (ffERG) to detect changes in global retinal function following treatment with Carotenoid Vitamins supplement in patients with diabetic retinopathy (DR). 4) Changes in retinal function as observed by OCT-Angiography, following treatment with Carotenoid Vitamins supplement in patients with diabetic retinopathy (DR).