Active clinical trials for "Macular Degeneration"

The Foresee Home is used in the recent years to detect age-related macular degeneration (AMD) lesions. The device is capable of differentiation as to stages of AMD and early detection of changes including choroidal neovascularization (CNV). The Foresee Home demonstrates a high level of sensitivity and specificity as to the different stages of AMD including newly diagnosed or early detection of CNV. The OCT may be use as well to identify choroidal neovascularization (CNV). Comparison between the two methods will allow better understanding of both devices. The Foresee Home can use as an assessment tool for the progression and success of the treatment given to AMD lesions. Therefore, evaluation the size and the location of the treated lesions may serve as an additional tool.

Neovascular or wet age-related macular degeneration (ARMD) is a retinal disease and is the leading cause of sight loss in the over 50s; it constitutes a major public health problem which will have an increasingly large impact as the population ages, because sight loss has been associated with loss of independence, depression, social isolation, and falls. Recent advances in medicine, and in particular the approval on behalf of the National Institute for Health and Clinical Excellence (NICE) for use of ranibizumab (Lucentis) in wet ARMD, have allowed this condition to be treated; however success is more likely when treatments occur at a very early stage. Unfortunately the early stages of wet ARMD do not cause symptoms and most cases are diagnosed when irreversible retinal damage has already occurred. In all stages of ARMD, even when no symptoms are present and non-invasive techniques currently used in routine clinical practice are not sufficiently sensitive to identify abnormalities, retinal function and possibly anatomy are abnormal. This study will evaluate techniques that may be useful in flagging subjects with the "preclinical" stages of the disease. This may allow early preventative measures to be taken, in order to stop altogether the onset of blindness. The study will focus mainly on colour contrast sensitivity, a simple but highly sensitive technique to assess retinal function, to establish if people with wet ARMD can be identified before symptoms develop. Other assessment modalities, evaluating either structure or function of the retina, will also be employed in selected individuals to establish if they may be used in the routine clinic; however it is already known that these modalities are not suitable for all individuals, as they are more demanding time-wise and concentration-wise, and therefore not universally suitable.

A cohort of patients responsive to treatment with ranibizumab but resistant to aflibercept were identified in a previously conducted retrospective study. Identified patients will have their blood drawn for genome wide sequencing. The sequencing data will be compiled and analyzed in an attempt to identify a common genetic basis for patients susceptible to ranibizumab but resistant to aflibercept.

The aim of the TITAN study is to describe the clinical practices of a cohort of patients with wAMD refractory to ranibizumab (persistence of intra-retinal and/or subretinal fluid) who switch to aflibercept after less than 12 months of ranibizumab treatment. The study will be conducted in real-life conditions and will allow describing conditions of use of aflibercept in patients refractory to ranibizumab

Neovascular Age-Related Macular Degeneration (NV AMD) remains the leading cause of vision loss among people over 65. Intravitreal injections with drugs that block VEGF have revolutionized treatment of NV AMD. However, less than 40% of treated patients have clinically significant imporovement in vision. In this study, we will determine the relative frequency of neovascular subtypes in two groups: 1) a representative, treatment-naive NV AMD patient population, and 2) a population of patients who develop recurrent NV AMD activity while off treatment and assess the frequency of persistent disease activity (PDA) according to specific neovascular morphologic subtypes. This information will clarify the scope of the PDA problem and will identify patients with PDA who may benefit from additional therpeutic strategies.

Background: - Maculopathies are eye conditions that affect the center of the retina. Retina health depends on the retinal pigment epithelium (RPE), a layer behind the retina. A new test may measure the health of the central retina and RPE. Objective: - To use the focal electro-oculogram (EOG) test to understand how the central retina and RPE are affected in maculopathies. Eligibility: People at least 10 years old with a maculopathy. Healthy volunteers with visual acuity of 20/20 or better in at least one eye. Design: Participants will be screened with medical and eye history and an eye exam. Pictures will be taken of the eyes. Their eyes may be dilated. They may have a field test. They will look into a lens and press a button when they see a light. First, they may sit in the dark for 40 minutes. Participants will have 1-7 visits over 18 months. Their vision will be tested and eye pressure measured. Their pupils will be dilated with eye drops and researchers may take pictures of the retina and the inside of the eye, and measure the thickness of the retina. Participants will have an electro-oculogram. They will look at a 2 LED lights and follow them back and forth for 10 seconds once per minute. Participants will be in darkness for 15 minutes and in light for 20 minutes. One skin electrode will be placed on the nose and one next to the eye. Participants with maculopathy will also have: Field test. Electroretinogram. Participants will get numbing eye drops and special contact lenses. A small metal electrode will be taped to the forehead. Participants will watch flashing lights and try not to blink. First, they may sit in the dark for 40 minutes.

The excised ILM from 7 eyes of 7 patients with MTM including 7 eyes with macular retinoschisis and 4 eyes with foveal detachment but without any retinal break underwent vitrectomy with induction of posterior vitreous detachment and ILM peeling was examined to evaluate ultrastructure with electron microscopy.

Age Related Macular Disease (AMD) is easily the leading cause of blindness in older people in developed countries. It affects between 30 and 50 million individuals worldwide, with around 30% of the over 65's showing early signs of the disease. Severe AMD has a devastating impact on the quality of life; it causes extensive visual impairment, making reading difficult and driving impossible. Patients lose their independence and become a major burden on public health systems. Present treatment options are limited. Many new therapies are under development and all will need evaluation using a test with high specificity and sensitivity for early AMD. The present application will develop such an instrument. The prototype was funded by a previous i4i FS (feasibility study ll-FS-0110-14036). The new device measures sensitivity to a dim flickering light using the same principle as an established european conformity marked (CE marked) instrument. The original method involved lights of different wavelengths and higher intensities. The instrument in this study assesses night vision, which is selectively damaged in early stage AMD. In low lighting, the investigators vision depends on specialized rod photoreceptors. Cone photoreceptors, which provide daytime vision, remain normal in the early stages of the disease. By the time patients complain of reduced (cone-based) visual acuity, they will have had the disease for many years and lost many thousands of photoreceptors.

The purpose of this study is to collect real-life data on patients with wet age related macular degeneration (AMD) for whom treatment with Eylea was initiated

This pilot study will evaluate home vision testing using a mobile medical application in participants with diabetic macular edema (DME) or neovascular age-related macula degeneration (nAMD) who receive intravitreal ranibizumab therapy. In the main, decentralized study, participants will be recruited via digital media, advocacy groups, or through their own ophthalmologist. The traditional substudy will evaluate the association between visual acuity and anatomical markers of disease status determined using clinical "gold standard" assessments (certified Early Treatment Diabetic Retinopathy Study [ETDRS] protocol visual acuity and macula optical coherence tomography [OCT]) and the results of home vision testing using the myVisionTrack^TM (mVT) application.