Active clinical trials for "Retinal Diseases"

the purpose of this study is to examine whether the deployment of a non-mydriatic color fundus camera in a rural prime care setting is feasible and improves the detection rate of diabetic retinopathy in patients where adherence rates with recommended ophthalmology screening is low.

The purpose of this study is to test a way to support practices to improve attendance at retinopathy screening among people with diabetes. This new approach will be delivered to staff in general practice and involves: 1) briefing and audit training for practice staff; 2) electronic alerts on patient files to prompt GPs and nurses to remind patients, 3) face-to-face, phone and letter reminders and a brief information sheet for people with diabetes who have not attended screening, and; 4) payment to practices. The practice will carry out an audit to identify patients who have not attended screening, and re-audit at 6 months to identify any changes in attendance. The study will test this new approach over six months in eight different practices to determine whether it is feasible to deliver in a real-world setting. Four practices will be randomly assigned to receive the new approach straight away (intervention group), while the other four practices will be assigned to the group who wait, deliver care as usual, and roll out the new approach after six months (wait-list-control group). After the new approach has been tested for six months, the research team will use staff questionnaires, and carry out focus groups and interviews with patients and practice staff to learn about their experiences. The time and resources needed to deliver the approach will also be recorded to estimate the cost of delivering the new approach and how feasible it would be to carry out a larger study.

This study assesses the ocular toxicity in patients on high dose hydroxychloroquine (HCQ) as per the latest guidelines of the American Academy of Ophthalmology (AAO).

Dosage of pro-inflammatory cytokines and soluble mediators (TNFα, IL6, IL2 and PDGF-AB) performed on 25 vitreous biopsies taken from patients with diabetic retinopathy and treated with increasing doses of curcumin (0.5uM and 1uM), with or without homotaurine (100uM) and vitamin D3 (50nM).

Diabetes affects approximately 35 million Americans, each of whom needs at least one retinal exam per year. However, majority do not get their eye exam due to multiple prohibitive factors such as cost, transportation, difficulty of taking time off from work, and inconvenience, amongst others. The standard of care in diabetes requires at least an annual eye exam to detect onset of diabetic retinopathy and to treat when indicated. This is important as diabetes is the most common cause of visual impairment and blindness in working age adults in the United States. There are too few trained professionals to diagnose diabetic retinopathy, this prompted the development of RETINA-AI Galaxy an automated software as a medical device which screens for diabetic retinopathy in the primary care setting. This observational study is designed to validate the safety and efficacy of the device.

The purpose of this study is to use a randomized controlled design to determine the impact of a SMS messaging intervention on the following outcomes among persons diagnosed with diabetic retinopathy in rural China.

The purpose of this study is to evaluate the effectiveness of investigational Doppler Optical Coherence Tomography (OCT) and OCT angiography in the management of proliferative diabetic retinopathy (PDR - a leading cause of blindness in diabetic patients) before and after treatment. Angiography is the mapping of the blood vessels, and Doppler detects blood flow. PDR is due to poor oxygen circulation in smaller blood vessels in the back of the eye (retina), and is observed in 80% of people who have had diabetes for more than 10 years. This study will look at how blood flow to the eye is affected before and after treatment.

The purpose of this study is to determine the effect of enhancements to the myVisionTrack® in regards to patient compliance and test-retest variability. Additionally, the ability of myVisionTrack® to detect changes in vision function will be evaluated.

The primary objective of this multi-center clinical study is to evaluate the validity, reliability, feasibility, safety and relative cost-effectiveness of a retinopathy of prematurity (ROP) telemedicine evaluation system to detect eyes of at-risk babies who meet referral warranted ROP (RW-ROP) criteria and therefore need a diagnostic evaluation by an ophthalmologist experienced in ROP. We shall: Calculate the accuracy, using sensitivity and specificity, of the system to provide remote evaluations when compared with the findings of a "gold standard" indirect ophthalmoscopic examination performed by a Study-certified ophthalmologist, rigorously trained in ROP diagnostic examinations (validity); Determine intra-reader and inter-reader agreement for deciding whether digital images indicate that the eyes of a baby are in need of diagnostic indirect ophthalmoscopy by an ophthalmologist experienced in ROP (reliability); Determine whether imaging evaluation can be achieved for each baby (feasibility); Examine ocular and systemic complications associated with digital imaging and compared with those associated with diagnostic examinations performed by an ophthalmologist (safety); Compare the costs and benefits of adopting a telemedicine retinal imaging system compared to the current cost of indirect ophthalmoscopic examinations (cost-effectiveness).

The purpose of this study is to determine whether bevacizumab 1-2 weeks before vitrectomy is effective in lowering the rate of early post-vitrectomy vitreous hemorrhage in diabetic patients.