Given the choice, most people would prefer not to have to wear glasses for distance tasks such as driving. In good hands, cataract surgery is an opportunity not only to improve your vision but also to reduce spectacle dependence.
The most important factor in achieving this level of accuracy is the skill and experience of your Surgeon – precision, consistency, exacting and rigorous attention to detail at every step; knowing how to adapt surgery to the requirements of each patient and the peculiarities of each eye. This level of understanding and refinement and the ability to apply it effectively and consistently come only after years of application as a Consultant Surgeon.
Accurate measurements of the dimensions and curvature of the eye are essential to correctly calculate the lens implant that is best suited to you. Inaccuracy of a fraction of a millimetre will influence the choice of lens implant and the need for glasses afterwards.
Almost every eye has some degree of astigmatism that needs to be corrected at the time of cataract surgery in order to attain good distance vision without glasses. This is achieved by a individualised pattern of surgical incisions or by using a special toric lens implant. A standard monofocal lens implant does not correct astigmatism and leaves many eyes with a degree of blurred vision, requiring glasses to see clearly for distance.