4 Clinical Trials for Various Conditions
Millions of people have undergone laser vision correction surgery and are motivated to continue with spectacle independence as they develop presbyopia (gradual loss of your eyes' ability to focus on nearby objects)and cataract. However, having a history of refractive surgery, poses challenges in the selection of the IOLs and can lead to visual outcomes that are unpredictable. Data from an international registry and single prospective study show that Vivity IOL provided effective distance, intermediate and near vision in eyes with previous LASIK with minimal effects on day vision associated with the surgery. The purpose of this study is to evaluate the clinical outcomes of post-myopic refractive surgery patients implanted with the Clareon Vivity/Vivity Toric lenses
The two main objectives of this study are to demonstrate safety and effectiveness of implanting the PanOptix Trifocal IOL in patients who have had previous myopic Lasik. The primary objectives to demonstrate clinical safety will be the quality of vision questionnaire (QUVID) which will demonstrate the patient's perception of halos, glares, and starbursts before and after the implantation of the trifocal IOL. The primary objective to demonstrate clinical effectiveness will be done by measuring visual outcomes at distance, intermediate, and near. In addition, the patients will also fill out the spectacle independence questionnaire (IOLSAT Questionnaire) to determine their level of glasses independence postoperatively. In addition, at the conclusion of the study the patient will also fill out a patient satisfaction survey.
This is a multicenter study to compare the accuracy of IOL calculations in post-laser vision corrected eyes that are about to undergo or have undergone cataract surgery.
The purpose of this clinical trial is to determine if interventions within the nursing home to restore vision, or cope with visual loss, in residents with visual impairment result in improvement or less decline in mobility scores, and socialization scores, compared to residents with visual impairment in nursing homes with no such intervention. The investigators hypothesized that nursing home residents with visual loss who receive cataract surgery, or refractive correction, or low vision aids would have have better socialization scores and mobility scores at 6 months and 12 months compared to nursing home residents with visual impairment who are advised to seek services, but have no specific program.