The new GRAS (Gullstrand Refractive Analysis System) software module at OCULUS is described as "a great advance for any myopia manager". The module allows for the provision of results of keratometry, axial length and refraction measurements with ease and reliability. OCULUS adds that it has adapted the Gullstrand eye model for use also with very young patients, extending the application field to be able to include children. Designed to provide an ideal basis for consultations, the Myopia Master® differentiates between the refractive components of the cornea, crystalline lens and axis length in relation to the Gullstrand eye model, giving those who use it the possibility to provide high level patient education. According to OCULUS, another advantage of the differential measurement output is that it shows changes not only of the system as a whole but also of its individual optical components. This enables the operator to initiate therapeutic measures with greater specificity. In addition, by comparing with the Gullstrand eye model the new GRAS Module can now recognize when an eye is in its accommodated state. This helps avoid erroneous refractions and subsequent mistakes.
