|Differing image sizes can cause headaches, blurry vision,
and poor depth perception.
Aniseikonia is a binocular condition in which left and right
images differ significantly in size or shape. Aniseikonia can be
resolve with with conventional or custom wavefront Lasik, Bladeless Lasik, PRK, LASEK, Epi-Lasik excimer laser assisted or lens based refractive surgery procedures like RLE and P-IOL refractive surgery if the imbalance is caused by simple myopia (nearsighted, shortsighted), hyperopia (farsighted, longsighted), or astigmatism that can be corrected.
Static and Dynamic
There are two types of aniseikonia – static and dynamic aniseikonia.
The first type is the classical aniseikonia, denoting a perceived
image size difference with a fixed gaze direction. Classic aniseikonia
can occur naturally or be induced by refractive surgery. Aniseikonia
is most pronounced when one eye is hyperopic and one eye is myopic.
Symptoms of Aniseikonia
Typical symptoms of aniseikonia are headaches, blurry vision,
sore burning tearing eyes, photophobia, reading difficulty, distorted depth perception, nausea, binocular diplopia,
and even nervousness, vertigo and dizziness.
Aniseikonia can be induced by refractive surgery, typically when
refractive error is different in one eye than the other after surgery.
Aniseikonia may occur if a myopic patient is overcorrected in one
eye into hyperopia, a hyperopic patient is overcorrected in one
eye into myopia, or any combination where the refractive error is
significantly different after refractive surgery. Aniseikonia may
occur if one eye is significantly more astigmatic than the other,
or irregular astigmatism causes an imbalance in the two images.
Temporary aniseikonia almost always occurs during the gap between
refractive surgeries when a patient has surgery performed on one
eye at a time.
If aniseikonia occurs or when refractive surgery is planned one
eye at a time, the least invasive response is for the patient to
wear a contact lens or lenses to fully correct both eyes to plano.
If aniseikonia occurs as an unplanned complication of refractive
surgery, refractive surgery induced aniseikonia may be able to be
be resolved with enhancement
surgery to balance the refractive error in both eyes.
Looking For Best Lasik Surgeon?
If you are ready to choose a doctor to be evaluated for conventional
or custom wavefront Lasik, Bladeless Lasik, PRK, or any refractive surgery procedure, we recommend you consider a doctor who has been evaluated and certified by the USAEyes nonprofit organization.
Locate a USAEyes Evaluated & Certified Lasik Doctor.
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