Independence - Intraocular Lens Patient Satisfaction Study
Research type
Research Study
Full title
A randomised, controlled, prospective study comparing patient satisfaction following cataract surgery using multifocal intraocular lenses (Group A) versus cataract surgery using monovision with monofocal intraocular lenses (Group B).
IRAS ID
137829
Contact name
Philip Jaycock
Contact email
Sponsor organisation
University Hospitals Bristol NHS Foundation Trust
Research summary
People who undergo cataract surgery have their natural, clouded lens removed and are fitted with an intraocular lens (IOL). The IOLs currently used in routine practice in the NHS are monofocal, ie. they are of single power and usually used to correct distance vision, so reading glasses are usually required after surgery to give good reading and intermediate vision.
Following cataract surgery, some patients are left deliberately short sighted in their non-dominant eye and the opposite eye is targeted to give good distance vision, to enable them achieve good near vision and reduce their dependency on reading glasses. This is known as monovision. Multifocal IOLs are designed to give good distance and near vision in order to eliminate or reduce the need for glasses or contact lenses following cataract surgery.
The purpose of this study is to determine whether patients who have bilateral multifocal IOLs inserted during cataract surgery have a better visual outcome and quality of life, compared to patients who have bilateral monofocal IOLs inserted and using monovision using the VF-25 questionnaire (a 25 item validated questionnaire).
REC name
South West - Frenchay Research Ethics Committee
REC reference
14/SW/0090
Date of REC Opinion
21 Jul 2014
REC opinion
Further Information Favourable Opinion