Corneal topographer Keratron™ Onda

wavefront aberrometervideo pupillometertabletop

Complete diagnostic station, used in clinical practice and research for analysing the optical environment in the presence of ocular aberrations. Its functions are: Accomodative dynamics measurement Non-invasive break-up time The Corneal Topography function of the Keratron™ Onda maintains the reliability and excellence of the other Topographers of the Keratron™ family. Ocular Aberrometry and the resulting Ocular Refraction measurement can also be performed under accommodative stress by replacing the use of cycloplegics. The continuous evolution of the software always brings new refractive survey functions. An aberrometric parameter has been identified, the “Strehl Ratio”, which allows to find, by means of a new software function, the spherical-cylindrical correction which gives maximum visual acuity, even in the presence of important aberrations. The application of these data allows prescribing personalized ophthalmic corrections while maintaining complete control of ametrope management. Ophthalmometer Data (sim-K) within ±0.25D on a normal cornea BFS (Best Fit Sphere) deviation typically within ±0.15D Analysis area on the pupil 7x7 mm std (7.3x7.3 mm max) Sensor Microlens Array OPTIKON design Spatial resolution 128 microns (2350 points in the maximum pupil) Wavelength SLD 840 nm Wavelength LEDs 750 nm and 590 nm Measurement Range -20D +10D (@VD=14mm) (sphere) ±10D (cylinder) Defocus compensation -11D +5D (automatic and manual) Objective measurement of the patient’s accommodative response from +1D -4D over the defocus Zernike polynomials 7th order