Cataract surgery involves replacing the cloudy lens of the eye with an intraocular lens implant (IOL). Even with new technological advances and high success rates in cataract surgery, sometimes a residual refractive error will occur, called a ‘refractive surprise’, resulting in an unsatisfactory visual outcome, and a burdensome dependence on glasses just to see adequately.
In the best case scenario, the patient’s prescription is embedded into the implant so that after surgery, they will be able to see correctly without the use of reading glasses or contact lenses.
However, in as many as one out of ten cases, perfect alignment between the implant and the patient’s prescription is unattainable, due to the high complexity of estimating and calculating the strength of the implanted lens. Other complexities may arise with patients who have previously undergone LASIK, photorefractive keratectomy (PRK) or radial keratotomy (RK) surgeries, or patients with other corneal surface irregularities.
The solution to these challenges frequently lies with LASIK laser eye surgery. In most of these cases, LASIK is the most efficient way to fine-tune and correct a patient’s refractive errors after cataract surgery.