The Zeiss IOL Master

Before cataract surgery can be performed, it is necessary to determine the dioptric power of the intraocular lens that will be used to replace the cataract. The most important pre-operative measurement is the axial length of the eye: the distance between the cornea and the retina. Using the precision of a laser and employing the technology of partial coherence interferometry,  the IOL Master is consistently accurate to within 0.02 mm or better. The axial length value (in millimeters) is then placed in a formula to generate the correct power of the implant.

The IOL Master also performs other important measurements including: corneal curvature, depth of the anterior chamber and the refractive power of phakic IOLs ( STAAR Visian ICL ).



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