Active clinical trials for "Retinal Diseases"

This study will evaluate the use of autologous bone marrow derived stem cells (BMSC) for the treatment of retinal and optic nerve damage or disease. http://mdstemcells.com/scots-ii/

Brief Summary The purpose of this study is to better characterize the retina and optic nerve in newborns using spectral domain optical coherence tomography (s-oct). This new technology provides a very detailed cross-section picture of the cellular layers in the retina and a 3-dimensional picture of the optic nerve head and the fovea (the center of the retina that provides the most accurate vision). These images have been used by doctors for more than 5 years to help diagnose and treat adults with eye diseases, such as macular degeneration, diabetic retinopathy, retinal detachments, and melanoma. But, it has never been studied in newborns. In newborns, it would potentially help in the diagnoses of glaucoma, optic nerve hypoplasia, foveal hypoplasia, and colobomata among many other disorders. Prior to diagnosing disorders, it is necessary to establish normal values. It is the purpose of this investigation to study the retina and optic nerves in neonates to establish normal values. After a parent of a normal newborn provides a written consent, the baby will be taken to the Eye Clinic where the instrument is located. The baby will be swaddled in one or more blankets as needed. The infants will be held in front of the instrument by a nurse. The technician will move the lens of the instrument to about 2 to 4 inches from the baby's eye. The mild light from the instrument will then enter the eye for a few seconds to obtain the desired image. The image can be captured through an immobile eye within 5 seconds. If the baby is fussy, he or she may be given a few drops of a sugar (sucrose) solution on a pacifier for calming. Although the images can usually be secured through a normal pupil, if the pupil is found to be too small, two drops of Cyclomydril will be placed on the eye for dilation. This is the eye drop used everyday in the Eye Clinic and nursery to dilate the pupils of babies. The dilation will last for about 6 to 10 hours. After the test, the baby will return to the nursery or be discharged home as intended by the Neonatology Division. There is minimal risk associated with this investigation. The instrument is non-invasive and does not touch the eye. The babies will be swaddled and held by a nurse to prevent any contact with the machine. The eye drop to be used if needed for dilation has been used on babies at Harbor for about 30 years. It has been found to very safe. The fact that we will study only term (not premature babies) and will apply only two drops if needed should minimize any risk from the eye drop. An ethical issue to consider is that while the study will provide important information that will undoubtedly help babies in the future, it will probably not benefit the baby being studied. However, if the baby has an undetected retinal or optic nerve problem, the study may reveal it.

Using the UHR-OCT and HD-OCT to evaluate early postoperative changes in patients with diagnosis preretinal membrane after successfully performed pars-plana vitrectomy and membrane peeling with two different types of dyes.

Retinal dystrophies are responsible for numerous cases of blindness, and there are no therapeutic possibilities today. Gene therapy is efficient in a dog model concerning dystrophy linked to a mutation of the rpe65 gene. If such a therapy is to be considered for humans, it is urgent to select, at a national level, patients suffering from dystrophy linked to a mutation of the rpe65 gene. The systematic correlation of phenotype/genotype is an anatomical-functional approach, but it also identifies patients who may be potentially included in a future gene therapy study. Indeed, identification of people with a mutation of rpe65 is still insufficient in France (compared to other European countries) because of a lack of systemic genotyping of retinal dystrophy.

The purpose is to assess accuracy of digital retinal image interpretation by technicians and direct ophthalmoscopy by nurses for the determination of diabetic retinopathy severity and the presence of diabetic macular edema for the identification of referrals to ophthalmologists. The results of both screening methods were compared with comprehensive eye examination by ophthalmologists.

To investigate ranibizumab's benefit on prevention of early postoperative vitreous haemorrhage in PDR-DME patients receiving vitrectomy.

Hair dye products could induce minimal forms of MEKAR retinopathies (Mitogen-activated Extracellular signal-regulated Kinase - inhibitors associated retinopathies). These minimal forms of MEKAR are likely to be underdiagnosed, since the associated visual loss is usually mild and so this condition should be considered when patients report blurred vision. The aim of the study is to analyze whether in the current population that dyes the hair, minimal forms that go unnoticed by MEKAR retinopathies can be induced.

Docosahexaenoic acid (DHA) has been shown to be particularly important for fetal and neonatal development. Infants born prematurely are at special risk for DHA insufficiency. The source of DHA after birth for preterm babies who are not fed full enterally, are mostly fat emulsions as the component of total parenteral nutrition solutions which usually do not contain DHA. The aim of this study is to investigate if the fish oil emulsion-administered from the first day of life and during parenteral nutrition-prevents infants from cholestasis and retinopathy of prematurity.

In this study, regressed proliferative diabetic retinopathy, very severe, severe and moderate non-prolifrative diabetic retinopathy patients who were going to have a cataract surgery, underwent a complete eye examination, OCT, FAG and color photography 2 weeks prior to their operation. All patients divided in two: 1) control group (Phyco,PCIOL), 2) triamcinolone treatment group (Phaco with PCIOL+IVT). One month after surgery a complete eye examination will be done especially; IOP and endophthalmitis. A 6 month follow-up will be done for these two groups and diabetic retinopathy progression will be checked.

The purpose of this study is to determine if diabetic retinopathy can be treated with prostaglandin analogues, prostaglandin synthesis inhibitors or carbonic anhydrases inhibitors.