Overcorrection makes an eye that was
nearsighted before surgery
farsighted (hyperopia) after surgery. Overcorrection
speeds up the start of
presbyopia. Most people who have overcorrection will
need reading glasses around age 40. Improvements in
surgical techniques are reducing the risk of overcorrection.
Surgery to correct overcorrection is possible. But it is hard to predict
how well it will work.
With radial keratotomy (RK) surgery, the
number of people who are overcorrected or farsighted seems to increase as more
time (years) passes after the procedure. These changes over time are believed
to be caused by the
hyperopic shift. The hyperopic shift is less common in
people who have had laser surgery.
June 24, 2011
Kathleen Romito, MD - Family Medicine
& Christopher J. Rudnisky, MD, MPH, FRCSC - Ophthalmology
How this information was developed to help you make better health decisions.
To learn more visit Healthwise.org
© 1995-2013 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
We are happy to take your appointment request over the phone, or, you may fill out an online request form.
Disclaimer: The information on this website is for general informational purposes only and SHOULD NOT be relied upon as a substitute for sound professional medical advice, evaluation or care from your physician or other qualified health care provider.