What Lasik Can And Cannot Correct

Berks Eye Physicians & Surgeons, Ltd.
LASIK Specialist Reading, PA

LASIK is a type of eye surgery that can potentially reduce or eliminate your dependence on glasses or contacts. Berks Eye values the eye health and vision of our patients. As such, we utilize all-laser LASIK for most of our vision correction procedures. All-laser LASIK utilizes two different types of lasers to correct refractive errors. The procedure takes around 10 minutes per eye. Patients experience little to no pain and achieve significant visual improvement within days.

If you depend on glasses or contacts, you may be wondering if LASIK is right for you. Here the doctors at Berks Eye discuss what LASIK can and cannot correct.

What LASIK Can Correct

LASIK corrects refractive errors in the eyes. Refractive errors are common. A refractive error means that the cornea’s curvature is imperfect and therefore cannot correctly focus light on the retina. (The cornea is the clear front part of the eye.)

LASIK can correct the following types of refractive errors:

Nearsightedness (Myopia)

Nearsightedness can cause distant objects to appear blurry. Objects that are near appear clear.

Farsightedness (Hyperopia)

Farsightedness can cause nearby objects to appear blurry. Objects that are distant appear clear.


Astigmatism occurs when the cornea curves differently in one direction than the other. With astigmatism, objects at all distances can appear blurry. Additionally, patients may experience difficulties seeing at night.

During the all-laser LASIK procedure, the experienced Berks Eye surgeon first uses a laser to create a flap in the cornea. The surgeon then uses a second laser to reshape the cornea to correct the refractive error.

What LASIK Cannot Correct

LASIK is truly a life-changing procedure. It quickly and safely corrects corneal imperfections, giving patients sharper vision and improved self-confidence. Unfortunately, LASIK cannot correct all eye disorders, including those discussed below. Patients with any of the following eye disorders should talk to the doctors at Berks Eye about alternative treatment options.


Amblyopia, more commonly known as lazy eye, can result in reduced vision. It can have different causes, including the following:

  • Misalignment of the eyes
  • Significant difference in the refractive errors between the two eyes

While LASIK cannot correct a lazy eye caused by misalignment of the eyes, it may be used to correct refractive errors that are contributing to the lazy eye.


A cataract occurs when the eye’s lens becomes cloudy. As cataracts develop, vision can become hazy. LASIK cannot correct a cloudy lens.


Glaucoma is a progressive eye disease that damages the optic nerve. It can lead to vision loss and blindness. LASIK cannot treat glaucoma.


Keratoconus is a progressive eye disease that causes the cornea to bulge out like a cone and results in distorted vision. Patients with keratoconus should not have LASIK surgery.

Schedule an Appointment

Are you ready to find out if LASIK is right for you? Then meet with the skilled doctors at Berks Eye. Please call (610) 372-0712 for an appointment. 

1802 Paper Mill Road Wyomissing, PA 19610
(610) 376-6968
8:00 am - 7:00 pm
8:00 am - 5:00 pm
8:00 am - 5:00 pm
8:00 am - 7:00 pm
8:00 am - 5:00 pm