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A diagnostic procedure that uses a device called a wave sensor to analyze the distorted wavefront of light exiting the eye. This provides a precise map of all optical aberrations, both low-order (sphere, cylinder) and high-order.
read more about wave aberrometry ...Light is shone into the eye and reflected off the retina. The wave sensor measures how the eye's optics distorted the light as it traveled back out, revealing the total optical error.
Essential for customized refractive surgery (LASIK/PRK), allowing surgeons to create highly personalized, aberration-free ablation profiles for the cornea.
Traditional refraction measures only low-order aberrations (myopia, hyperopia, astigmatism). Wave aberrometry measures these plus the high-order errors (coma, trefoil, spherical aberration).
Not yet standard, but increasingly common for surgical planning. It provides much more detail than traditional subjective refraction.
Optical imperfections other than sphere and cylinder that can affect vision quality, often causing symptoms like glare, halos, and ghosting, particularly at night.
The instrument used to perform wave aberrometry, typically employing a technology like the Shack-Hartmann sensor.