undercorrection

undercorrection

(ŭn″dĕr-kŏ-rĕk′shŭn)
In refractive eye surgeries such as LASIK, too small a change in shape of the cornea that results in inadequate focusing of light rays (failure of light to fall onto the retina).

undercorrection 

A term applied to a corrective lens prescription of slightly lower power than required. It has been prescribed in an unsuccessful attempt to slow the progression of myopia in children because it reduces the accommodative stimulus. See myopic defocus; myopia control.
References in periodicals archive ?
Knowledge and beliefs associated with refractive errors and undercorrection: the Singapore Malay Eye Study.
Oliver's left contact lens prescription was increased to avoid the potential for myopia progression from undercorrection, (19) and he was also prescribed divergence vision training to improve the still-evident convergence excess.
However, most of these procedures may cause common complications such as overcorrection or undercorrection. Hence, we came up with a modified surgical procedure to fix the mild-to-moderate ptosis, while overcorrection and other complications were rarely observed.
Undercorrection and Overcorrection and Proximal Junctional Kyphosis
aimed to establish whether slight undercorrection of the planned resection wedge could achieve results similar to a full planned resection.
The existent recommendations for the size of dermis fat graft have been adjusted in our patients to avoid undercorrection and central necrosis due to compression and ischemia in oversized graft [7].
A K-wire insertion angle of less than 10[degrees] should be avoided, as the K-wire may not maintain contact with the radial inner cortex, which will result in undercorrection in the coronal plane.
KP([PHI]) is negative for an overcorrection and positive for an undercorrection along the reference meridian.
Any amount of overcorrection or undercorrection were measured by alternate prism bar cover test.
reviewed the 15-year clinical results of LASIK and found that the myopic regression from 3 months to 15 years postoperatively was -1.66 [+ or -] 2.15 D in eyes with myopia of -9.47 [+ or -] 3.26 D, indicating that the refractive outcomes tended to shift toward undercorrection over time [19].
Surgeon satisfaction was also better in SRG than FLG as the procedure was easy, less time consuming, and easily adjustable in case of undercorrection or overcorrection when compared with FLG.