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Spherical aberration
 
 
IN BRIEF

Specific type of wavefront aberration associated with reduced vision quality, especially night vision disturbances (starbursts and haloes) and reduced contrast sensitivity.

 
DISCUSSION

Laser eye surgery for myopes is generally thought to cause spherical aberration in some amount. Depending on the amount, it may or may not be perceptible; moderate to large amounts may cause significant degradation of vision quality. Spherical aberration is most commonly associated with reduced vision quality in dim light, including reduction in contrast sensitivity and the appearance of point light source vision disturbances (starbursts, haloes).

 
RELATED ENTRIES

night vision disturbance

wavefront aberrometry

 
RELATED LASERMYEYE ARTICLES

 

 
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Last updated 1 Dec 2004.