Scanning Systems, Laser, Optical Coherence Tomography, Ophthalmic, Biometry
Definition : Optical coherence tomography (OCT) laser scanning systems that use noncontact partial coherence laser interferometry to measure the characteristics of eye structures (i.e., optical biometry). These systems typically include a laser diode that delivers a dual beam of infrared light at two different frequencies; a photodetector to measure the interference signal, which measures the distance between the corneal surface and retina; and software with an algorithm to derive the intraocular distance (geometric separation) based on the refractive indexes of the natural ocular media. Optical biometry laser scanning systems are intended to accurately predict postoperative refraction indexes used for intraocular lenses, especially in pseudophakic eyes.
Entry Terms : "Biometry Optical Tomography Scanning Lasers" , "Scanning Systems, Laser, Optical Tomography, Biometry"
UMDC code : 23549