Major technological advances in the field of refractive surgery have led to the development of instruments that allow easy measurement of higher order aberrations
Ocular higher order aberrations
in individiual screened for refractive surgery.
Objective: To compare the mean root mean square (RMS) of total higher order aberrations
(HOAs), coma and spherical aberrations in individuals with myopia, hypermetropia and myopic astigmatism.
Effects of advanced surface ablations and intralase femtosecond LASIK on higher order aberrations
and visual acuity outcome.
A new lens technology called iZon is based upon wavefront analysis of each eye, and essentially provides high-definition vision in those of us who have higher order aberrations
, or aberrations beyond simple nearsightedness, farsightedness or astigmatism, all of which are analog errors.
Higher order aberrations
(HOAs) were measured with aberrometer (Wavelight allegro analyzer version 1073) during preoperative assessment and one month after surgery.
Intraindividual comparison of functional vision and higher order aberrations
after implantation of aspheric and spherical intraocular lenses.
Spherical aberration and higher order aberrations
with Balafilcon A (PureVision 2) and Comfilcon (Biofinity).
The iPrint covers all potential refractive errors, including the higher order aberrations
which are associated with overall lack of crispness in vision.
The DNEye registers lower and higher order aberrations
of the eye for near and far vision, as well as the brightness-dependent changes of the pupils.
Ophthonix is the only company able to provide the market with advanced, customized non-surgical correction based upon a patient's individual refractive needs related to higher order aberrations
These pixels supply refractive properties that correct for relatively complicated or higher order aberrations
of the patient such as coma, trefoil, spherical aberration, tetrafoil, distortion and astigmatism.