Expression sometimes used to describe patients of laser vision correction who have not achieved the expected results but are satisfied because their perceived vision needs or expectations are met.

20/happy is most typically used to describe patients:

(a) who have not achieved the surgical goal in terms of visual acuity, see less than 20/20 UCVA and may have experienced a loss of BCVA, but do not wear corrective lenses anymore and that accomplishment is sufficient for them to be satisfied with their results; or

(b) have achieved an acceptable level of visual acuity but which was accompanied by a significant loss of vision quality which they view as an acceptable tradeoff for improved visual acuity.

20/20 - explains the scale for measuring visual acuity

visual acuity - explains what acuity does and does not measure

vision quality - explains the difference between acuity and quality of vision

UCVA - explains uncorrected visual acuity which is the focus of laser refractive surgery

BCVA - explains permanently reduced acuity

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