View clinical trials related to Presbyopia.
Filter by:The purpose of this study is to determine if the AcuFocus Corneal Inlay ACI 7000PDT will provide an effective method for the correction of presbyopia in patients who have normal distance vision but need a correction such as glasses or contact lenses to see clearly at near.
The purpose of this trial is to compare the performance of two multifocal contact lenses.
The purpose of this study is to determine if the AcuFocus Corneal Inlay ACI 7000PDT will provide an effective method for the correction of presbyopia in patients who have normal distance vision but need a correction such as glasses or contact lenses to see clearly at near.
The primary purpose of the study is to compare the performance of three soft bifocal contact lenses in terms of the vision provided by the lenses.
The purpose of the study is to compare the visual performance of two soft bifocal contact lenses.
The VEPRO trial is a cross-over randomised controlled trial comparing 2 corrective lenses for patients with presbyopia. The aim of the study is to compare the effectiveness of two corrective lenses: an old generation (Varilux Comfort Orma Crizal) and a new generation (Varilux Panamic Orma Crizal) of corrective lenses prescribed in presbyopia.
The purpose of this study is to investigate the changes in the pilocarpine-induced ciliary body movement before and after cataract extraction in order to determine the effect of lens sclerosis on the ciliary muscle contractility.
This is a research study designed to test the utility of D-shaped bifocal lenses and PRIO Computer Lenses for persons using a computer. We hypothesize that lenses specially designed for computer use may allow more comfortable and productive work on a computer.
Chemotherapy drugs, used in cancer treatments, may change the timing of a vision condition known as presbyopia. Presbyopia is the inability to focus the eye on close objects, by a process called accommodation. It is caused by an increase in the stiffness of the lens of the eye that occurs naturally with aging. Currently, there are no known treatments that can be used to prevent or delay presbyopia. As a result, the risk, in later life, of having this condition is essentially 100%. The purpose of this research is to determine whether chemotherapy drugs are delaying the age at which people develop symptoms of presbyopia. We hope to establish that presbyopia can in fact be delayed with the use of drugs, which would ultimately lead to further research in this area.