Subthreshold Nanosecond Laser for Non-resolving Central Serous Chorioretinopathy
Central Serous ChorioretinopathyThis is a prospective, multicentre, sham-controlled, participant- and assessor-masked superiority trial with two parallel treatment arms which aims to investigate the safety and efficacy of subthreshold nanosecond laser (SNL) in a series of adults with sub-retinal fluid secondary to non-resolving central serous chorioretinopathy (CSCR) by visual and anatomical outcomes. The study population will be individuals with adults (aged 18-70 years inclusive) with non-resolving CSCR (defined as CSCR present for a duration of more than 3 months presenting with either focal or diffuse leakage) who meet all eligibility criteria. 60 subjects total will be enrolled into the study - 40 randomized to receive SNL treatment and 20 to receive sham treatment as per a 2:1 randomization schedule and stratified by type of CSCR (focal vs diffuse). The study has a 24-week study period with five scheduled visits: screening, randomisation (first treatment), 6-week follow up (with second treatment where eligible), 12-week follow-up , 18-week follow-up, and 24-week follow-up. The primary outcome is the proportion of laser-treated study eyes that show resolution of sub-retinal fluid (SRF) as observed on optical coherence tomography (OCT) compared to sham-treated study eyes at 24 weeks. The safety endpoint will be proportion of laser-treated eyes that lose ≥10 letters of of vision (measured on a standard vision chart) compared to sham-treated study eyes and fellow eyes over 24 weeks.
Steroid Eye Drops in Chronic Central Serous Chorioretinopathy
Chronic Central Serous ChorioretinopathyIn this pilot study the effect and safety of the use of steroid eye drops in chronic central serous chorioretinopathy (cCSC) will be evaluated. The study is conducted as a randomized single-blind placebo-controlled trial. Forty patients will be randomized to either steroid eye drops or placebo eye drops. Patients will self-administer the eye drops three times a day for four weeks.
Phase I Study of Episcleral Celecoxib for Treatment of Macular Edema and Inflammatory Disorders...
Macula EdemaRadiation Retinopathy5 moreThis phase I trial will assess primarily the safety and secondarily the anti-inflammatory and anti-neovascular effect of Episcleral Celecoxib in patients suffering from macular edema and other inflammatory disorders of the retina, choroid and vitreous.
Different Doses of vPDT in the Treatment of cCSC
Central Serous ChorioretinopathyTherapy1 moreThis is a prospective, randomized and controlled clinical trial of photodynamic therapy (PDT) for chronic central serous chorioretinopathy (CSC). The patients who met the inclusion criteria were randomly divided into 50% dose PDT treatment group and 70% dose PDT treatment group. The primary treatment success rate and adverse event rate of the two groups were compared by optical coherence tomography (OCT), and then the best PDT treatment scheme for chronic CSC was summarized.
Results of Suprachoroidal Steroids Injections in Two Chorioretinal Diseases
Central Serous ChorioretinopathyIrvine-Gass Syndrome2 moreSuprachoroidal injection is a safe way for intraocular drug delivery. It was used to treat various retinal conditions.
Sildenafil for Treatment of Choroidal Ischemia
Choroidal IschemiaVitelliform Macular Dystrophy3 moreThe hypothesis of this study is to determine if there is a benefit afforded by the use of systemic Sildenafil to patients with choroidal and retinal degenerations and dystrophies, such as vitelliform degeneration, dry and reticular age-related macular degeneration (AMD) as well as patients with hereditary and acquired retinal dystrophies such as retinitis pigmentosa and central serous retinopathy.
Two Patterns of Micropulse Laser in the Treatment of Chronic Central Serous Chorioretinopathy
Central Serous ChorioretinopathyCentral serous chorioretinopathy (CSC) is a common eye disease mainly involving the macular area, causing central visual acuity loss. Recently, subthreshold micropulse laser used in treating chronic CSC is proved to be safe and effective. However, some studies indicate that it's less effective than half dose photodynamic therapy (PDT). Certain physicians, including us, think that this may be related to micropulse laser parameters. Thus we need to explore better laser patterns to replace PDT in treating chronic CSC. The aim of this study is to compare the treatment effect of two different patterns of laser parameters (small and regular spot diameter) in treating chronic CSC. In this randomized, double blinded, controlled trial, by comparing the subretinal fluid regression ratio, central retinal thickness, macular microvisual field, macular vascular density, chroidal volume changes and visual acuity of two groups 6 months after micropulse laser treatment, we aim to evaluate the safety and efficacy of refined micropulse laser in treating chronic CSC.
Choroidal Blood Flow in Acute and Chronic Central Serous Chorioretinopathy
Central Serous ChorioretinopathyPatients with central serous chorioretinopathy (CSC) will be monitored with laser speckle flow graphy (LSFG), swept source optical coherence tomography (SS-OCT) and SS-OCT angiography (SS-OCTA). We aim to unveil the flow and pulse wave characteristics of the choroidal circulation in acute CSC and chronic CSC.
OCT in Rare Chorioretinal Diseases
Retinal Artery OcclusionsPolypoidal Choroidal Vasculopathy3 moreThis study will evaluate the total blood flow in the retina and choroid (structures in the back of the eye) by Doppler optical coherence tomography (OCT) and OCT angiography. Angiography is mapping of the blood vessels. The purpose of measuring blood flow in the retina and choroid is to 1.) determine if rare diseases in these structures causes a change in blood flow compared to healthy eyes and 2.) find out if areas of changed blood flow line up with areas of damage that appear on conventional testing.
Study on the Use of Micropulse Laser to Treat Central Serous Chorioretinopathy
Central Serous ChorioretinopathyThe investigators hypothesis is that using the micropulse laser in patient with Central Serous Chorioretinopathy (CSC) will prompt resolution of CSC and will be effective in significantly minimizing visual recovery time from this disease as well as potentially preventing recurrences.