To find more information regarding this study please see the
patient information sheet (short version).
The University of Plymouth is currently conducting a research project with University Hospitals Plymouth NHS Trust to compare two types of intraocular lens used in cataract surgery.
During cataract surgery the natural lens within the eye is removed and replaced with an artificial one called an intraocular lens (IOLs). The standard IOL used within the NHS are single-focus and give clear vision at one distance (near, mid-distance or distant) but do not correct astigmatism. About one in five patients who require cataract surgery also have astigmatism, an eye condition where the front clear covering of the eye (cornea) is not round. This distortion makes vision blurry at all distances.
People with even mild astigmatism may need to wear contact lenses or spectacles for clear vision. Astigmatism not only results in blurry vision, it has been shown to affect a person’s quality of life and increase their risk of falls.