We present a novel confocal laser method (CLM) for precise testing of the dioptric power of both positive and negative intraocular lens (IOL) implants. The CLM principle is based on a simple fiber-optic confocal laser design including a single-mode fiber coupler that serves simultaneously as a point light source used for formation of a collimated Gaussian laser beam, and as a highly sensitive confocal point receiver. The CLM approach provides an accurate, repeatable, objective, and fast method for IOL dioptric power measurement over the range from 0 D to greater than +-30 D under both dry and in-situ simulated conditions.
© 2008 Chinese Optics Letters
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(170.1790) Medical optics and biotechnology : Confocal microscopy
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
Ilko K. Ilev, Robert W. Faaland, Do-Hyun Kim, Robert H. James, and Don Calogero, "Innovative confocal laser method for exact dioptric power measurement of intraocular lens implants," Chin. Opt. Lett. 6, 876-878 (2008)