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In addition to those vision problems you've probably heard of before — the lower order aberrations like nearsightedness and farsightedness — there are common vision problems known as higher order aberrations that can also affect your vision. Higher order aberrations are widely believed by ophthalmic experts to contribute to common night vision problems, including glare and halos.
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Higher order aberrations cannot be corrected through traditional
LASIK procedures. Similarly, glasses and contact lenses are unable
to help with these vision problems. An exciting new procedure, called
a CustomCornea,
is capable of correcting both lower order and higher order aberrations.
Diagnosing higher order aberrations
Higher order aberrations are diagnosed and measured using wavefront maps. These maps are plotted by passing a narrow
ray of eye-safe light through the optical system and measuring the optical distortions as the light exits the eye. These patterns
are then compared with the flat wavefront associated with normal vision. An ideal wavefront map would be perfectly flat.
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