Zioptan

Pilot, single-site, prospective study of QLS-111 0.015 % in subjects with NPDR, OAG or NTG

This pilot clinical trial evaluates whether non-invasive brain stimulation improves the orientation and mobility (O\&M) skills of individuals with constricted visual fields in both eyes. The study is composed of three visits. The first visit is meant to confirm eligibility by performing a few clinical tests. Eligible participants will then complete two additional visits, one in which they receive active stimulation, and one in which they receive placebo (sham) stimulation. Stimulation will be administered in a randomized, double-blind order. To evaluate improvement, various measures of O\&M performance will be assessed on a standardized obstacle course featuring static natural and artificial obstacles at defined intervals after the intervention. We hypothesize that the application of brain stimulation to region of the brain responsible for visual processing will improve the orientation and mobility skills of individuals with binocular constricted visual fields immediately following stimulation, and the results will inform the design of a future, larger-scale study.

The purpose of this study is to evaluate whether a large language model (LLM)-based audiovisual educational tool improves the test time and reliability of standard automated perimetry (SAP) using the SITA Standard 24-2 protocol in English-speaking glaucoma patients. Glaucoma is a disease that can lead to blindness if not properly monitored and treated. One of the most important tests for glaucoma is the visual field (VF) test, which checks how well a person can see in different directions. However, this test is difficult for many patients to perform correctly, especially if they don't fully understand how it works. Unreliable test results can lead to repeated visits, wasted time, and incorrect treatment decisions. This study is testing whether a computer-based educational tool, powered by artificial intelligence (AI), can help patients better understand the VF test before taking it. The study team want to see if this helps make the test results more reliable. The goal is to improve the quality of care while reducing the burden on patients and clinic staff. The LLMs will be used as an educational tool only, not for the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease.

The purpose of this study is to evaluate the effect on 24-hour IOP reduction of netarsudil-latanoprost fixed combination in one eye compared to latanoprost alone in the contralateral eye, dosed daily, 1 drop at night (QD, PM) in adult subjects, at least 18 years of age, with open angle glaucoma (OAG) or ocular hypertension (OHT).

Goldmann Applanation Tonometry (GAT) is considered the clinical gold standard for eye pressure measurements and yet it is known to be a subjective measurement with limited repeatability and limited portability. Another clinical standard for checking eye pressure is known as the pneumotonometer. This method is more objective but not portable. The purpose of this study is to develop new methods of measuring eye pressure that are more objective, reproducible and portable. In this study, we will be comparing the eye pressure measurements using 2 investigational methods to GAT and pneuumotonometer.

Glaucoma refers to a group of progressive optic neuropathies that lead to permanent vision loss. Glaucoma is the leading cause of irreversible blindness globally. In 2020, it was estimated to affect 76 million individuals worldwide, with projections indicating this number will rise to 111.8 million by 2040. In Canada, glaucoma affects an estimated 2.7-7.5% of individuals over the age of 50, contributing substantially to the national disease burden. This condition is linked to damage of the optic nerve due to elevated intraocular pressure (IOP; raised eye pressure), which results in the loss of retinal ganglion cells. Therefore, most of the treatments are guided towards reducing the IOP either via using laser, medications or surgery. Glaucoma surgery is typically reserved for cases where IOP remains uncontrolled while on maximum tolerated medical therapy and/or where glaucoma progression warrants surgery. The goal of many glaucoma surgeries is to divert aqueous humor from the anterior chamber to the subconjunctival space, therefore reducing intraocular pressure. The device used for this purpose are the PRESERFLO™ MicroShunt (Glaukos Corporation, Laguna Hills, CA, USA) (the documents will interchangeably use terms "stent" and "shunt" to refer to these devices in the text below). The device is implanted using the ab externo approach to channel fluid from the anterior chamber to the subconjunctival/subtenon space. To reduce postoperative fibrosis and inhibit fibroblast activity that could obstruct flow and lead to device failure, 5-fluorouracil (5-FU) or mitomycin C (MMC) are administered. Additionally, a double-layered closure of conjunctiva and Tenon's is performed to minimize Tenon's migration and blockage of tenon the stents. Despite these measures, stent encapsulation and failure are still too common requiring revisions and bleb needling in 2-20% of cases within the first 12 months of follow-up. This project will involve a series of studies evaluating graft selection in PreserFlo MicroShunt implantation, focusing on donor sclera, cornea, and pericardium as patch graft materials. First, the investigators will conduct a prospective, randomized study comparing clinical outcomes between these graft types. Outcomes of interest will include surgical success rates, post-operative hypotony, tube erosion, conjunctival complications, infection, and overall device longevity. Donor sclera has long been used as a patch graft in glaucoma drainage device surgery and is associated with low erosion rates and reliable long-term results. Corneal tissue is increasingly used due to its transparency and availability through eye banks, with demonstrated safety in ocular surface reconstruction and tube coverage. Pericardium is another durable, biocompatible option, historically applied in both cardiovascular and ocular surgery, and has shown effectiveness as a patch graft in glaucoma drainage implants. This comparison will extend to both primary implantation and revision surgeries, recognizing the high clinical relevance of graft performance in complex cases. Building on these results, the investigators will then perform a cost-effectiveness analysis of graft strategies, incorporating surgical time, post-operative management, complication rates, and need for re-operation. An economic model will be developed to evaluate costs and resource utilization associated with each material, providing valuable data for policy and surgical decision-making. Finally, the investigators will conduct a patient-reported outcome (PRO) study to assess patient comfort and satisfaction with different grafts. Surveys will evaluate domains such as foreign body sensation, cosmesis, and overall satisfaction at key time points (immediate post-operative period, 1 week, 3 weeks, and 3 months). These results will highlight the patient perspective, an often underrepresented but critical factor in surgical innovation. Together, these studies will comprehensively assess graft selection from surgical, economic, and patient-centered perspectives, informing evidence-based practice in glaucoma care.

The Investigators will investigate the efficacy of combining the standalone iStent infinite and iDose that are minimally invasive surgical and drug depot options are a safe and effective alternative to filtering surgery for intraocuar pressure reduction in patients with medically uncontrolled open angle glaucoma.

This study is exploring the effectiveness and safety of soft contact lenses with embedded sensors, called smart contact lenses. Smart contact lenses are used to measure the pressure inside the eye.

This trial is a randomized study to evaluate the Bimatoprost Implant System used in combination with the SpyGlass IOL to Timolol Ophthalmic Solution in participants with mild to moderate open-angle glaucoma or ocular hypertension undergoing cataract surgery.

The objective of this study is to evaluate whether reduction in topical medication with the injection of a sustained release capsule (Durysta) leads to a reduction in ocular surface inflammation, indicated by levels of caspase-1, an inflammatory biomarker.

To evaluate the effect of brimonidine tartrate 0.025% on conjunctival hyperemia in patients treated with netarsudil 0.02%/latanoprost 0.005% mono-therapy for intraocular pressure lowering.

The main purpose of this study is to learn more about how Rocklatan eye drops affects blood flow in the eye. The secondary purpose is to see if our study devices can detect changes in blood flow before and after instillation of Rocklatan.