Gogte P , Hark LA., Spaeth E., Richman J., Wizov SS., Waisbourd M., Spaeth GL. Contrast Sensitivity - A Meaningful Way to Assess Health Related Quality of Life and Ability to Perform Daily Activities in Glaucoma Patients. ARVO Poster 2097-A0004 May 2015.
Sun Y, Erdem E, Wizov S, Kayak N, Wei H, Spaeth GL Quality of life measures in moderate glaucoma: study design and methodology. Abstract submitted, Association for Research in Vision and Ophthalmology, Dec 2012.
Waisbourd M , Gogte P., Richman J., Spaeth E., Dai Y., Wizov SS., Hark LA., Spaeth GL. Comparative Results with Regards to Humphrey Visual Fields and the SPARCS Contrast Sensitivity Test in Patients with Glaucoma. AOS meeting April 2015.
A Prospective, Longitudinal, Observational Cohort Study Examining How Glaucoma Affects Quality of Life and Visual Function Over a 4-Year Period
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
