of myopia with single vision spectacles was once thought to be an ideal strategy for myopia control as it reduced accommodative lag, which has been associated with myopia and its progression.
Any amount of overcorrection or undercorrection
were measured by alternate prism bar cover test.
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.
Likewise, proper planning can avoid undercorrection
Why does undercorrection
not reduce its progression?
Koo NK, Lee YC, Lee SY Clinical study for the undercorrection
factor in intermittent exotropia.
Some of the risks of poorly performed LASIK surgery include blindness, severe infection, significant undercorrection
, significant overcorrection, severe dry eyes, impaired night vision, double vision, and seeing “halos” and “starbursts.
The use of the Bazett formula results in an overcorrection of the QT interval at higher heart rates and undercorrection
at lower heart rates.
These included development of exposure keratopathy due to dryness of eyes in both eyes of one patient, overcorrection in one eye of a patient and undercorrection
with hypotropia in one eye of another patient.
Despite all precautions, one may end up with overcorrection or undercorrection
A 2008 American Journal of Ophthalmology report found that 28% of eyes treated with Lasik required additional surgeries less than ten years after the initial surgery due to undercorrection
, overcorrection, or regression.
There was no astigmatism and only a trace of spherical aberration from mild undercorrection