The iTrace is the newest acquisition to the diagnostic services offered by Perth Retina Clinic. This machine uses ray-tracing technology to analyse aberrations and thus the total visual function of the eye. It is able to measure and quantify the total refractive power of the eye and identify the cause of imperfections in the visual system.
The iTrace sequentially sends 256 individual light rays through the pupil, then detects where each of these light rays land on the retina. By analysing the spot pattern, the cause and location within the eye of optical aberrations can be identified. This information is crucial in determining which patients might be suitable for cataract surgery, or in identifying the loss of vision due to vitreous floaters, and hence whether a patient can be expected to benefit from YAG laser vitreolysis.