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. 2005 Dec;103:512–536.

TABLE 7.

ACCURACY OF MANIFEST REFRACTIVE SPHERICAL EQUIVALENT: PERCENTAGES UNDERCORRECTED AND OVERCORRECTED

ACCURACY MONTH 1 n = 354 MONTH 6 n = 352 MONTH 12 n = 354 MONTH 24 n = 285
Undercorrected > +1.00 D 3% 6% 10% 15%
Undercorrected > +2.00 D 0.28% 0.28% 1% 2%
Overcorrected < −1.00 D 23% 6% 2% 1%
Overcorrected < −2.00 D 6% 1% 0% 0%