Our Practice

IOL Master Ocular Biometry

During cataract surgery, the cataract is removed and a prosthetic intraocular lens (IOL) implanted in its place.

Highly detailed measurements of the eye are taken before surgery which allow our surgeons to calculate the correct type and power of IOL to implant. The Zeiss IOLMaster is widely regarded as the world-leader in high-accuracy biometry.

The IOL Master is a non-contact optical coherence biometer which allows for complex eye length and surface curvature measurements to be gathered without the use of anesthesia, and minimizing the potential for contamination.

Using a technology called partial coherence interferometry, the IOL Master provides consistently precise results, which are required in complex calculations made by our surgeons before cataract surgery.  An internal algorithm allows for an accurate calculation of the distance to the vitreoretinal interface (where the vitreous gel meets the retina at the back of the eye), which is calibrated against a high resolution biometric system, and allows the accurate selection of an IOL to suit each individual patient.