Selecting a Lens Implant (IOL) for Cataract or Refractive Lens Exchange Surgery
Dr. Hamilton uses pre-surgery eye measurements and intraoperative diagnostic tools to estimate the power and type of IOL he thinks will provide you with the best vision after surgery.
Every eye of every patient heals in its own, unique way. This healing process can affect the position of the IOL in the eye. If the IOL heals into place more towards the front of the eye than average, the eye ends up slightly nearsighted. Similarly, if the IOL heals into place more towards the back of the eye than average, the eye ends up slightly farsighted.
Despite the number and quality of measurements used to select the IOL power and predict the visual outcome, it is still just an estimate for any given patient. And because every eye heals slightly differently after surgery, getting ‘close’ to the predicted outcome is often the best result a patient can expect. If the visual target is not achieved, this can be corrected by glasses, contact lenses, or additional surgery, such as LASIK or by removing and replacing the IOL.