Understanding Dry Eye Symptoms After LASIK Eye Surgery
Dry eye is extremely common and is, in fact, the most common reason patients visit an eye doctor’s office. Dry is definitely common for some LASIK patients, as well, during the healing process. But not all patients—and usually for just a short while.
Some patients never experience dry eye during recovery. But just in case, eye drops are prescribed to all LASIK patients to help with the healing process and keep them comfortable.
Understanding Dry Eye
Because dry eye can be caused by many different conditions, it is important to understand dry eye symptoms in the context of having LASIK. Many people who want LASIK already have dry eyes. Recent research reports that up to 30 percent of laser vision correction patients report dry eye symptoms prior to their surgery.
This shouldn’t be surprising as many contact lens wearers complain about uncomfortable dry eyes as a result of using contacts. Those patients often look into having LASIK so they can continue to see well without having to resort to wearing glasses when their contacts are no longer tolerated.
There have been a lot of advances in the field of dry eye, both in diagnosing the condition, as well as treating it. An important part of the evaluation for LASIK candidacy is assessing any dry eye symptoms and their potential impacts on the surface of the eye.
Pre-existing dry eye is the leading risk factor for significant dry eye after LASIK, so it is important to discuss any dry eye symptoms during the LASIK evaluation. If dry eye is diagnosed before your LASIK procedure, you should have your pre-existing dry eye problem treated. Once it’s resolved and the surface of your eye is in good condition, then you’ll be able to move forward with LASIK.
Why Does Dry Eye Happen After LASIK?
All surgeries involve cutting tissue. In the case of LASIK, some nerves in the cornea are cut which can temporarily reduce the sensation—the awareness or feeling—you have of the surface of the eye. During the healing process, the eye may not sense the need for moisture, so it produces fewer tears which can lead to dry eye symptoms.
Because LASIK changes the shape of the cornea, it is also possible that, while the eye heals, the tear film is unevenly distributed across the surface of the eye. When the surface of the eye is dry it doesn’t do as good of a job in focusing light, causing blurry vision.
This is why it is important to keep up the eye drop routine prescribed by your surgeon, which includes both lubricating eye drops and other medication to help with healing.
The good news is that for the vast majority of LASIK patients, dry eye symptoms are mild and temporary and, with today’s advanced dry eye therapies, can be well-managed.
How Likely are Dry Eye Symptoms After LASIK?
A recent FDA-led study reported how and how often patients experienced dry eye symptoms before and after LASIK. The findings of these patient-reported outcomes were particularly interesting when it came to dry eye symptoms:
- For those who reported having dry eye symptoms before LASIK, nearly 60 percent reported their symptoms resolved after having LASIK.
- Less than 30 percent of patients with no symptoms before LASIK reported having dry eye symptoms after LASIK. The majority—85 percent—reported the symptoms were mild.
- Regardless of whether or not they had dry eye symptoms before LASIK, patients reporting dry eye symptoms after LASIK continued to see improvement in their symptoms over time.
You should feel comfortable asking your eye doctor about the potential of dry eye symptoms after LASIK, so you have an informed understanding of what to expect. This should include talking about what therapies might be recommended to keep you comfortable during the healing process.
Importantly, having dry eyes does not automatically eliminate you as a candidate for LASIK or other laser vision correction procedures. Your eye doctor will need to thoroughly evaluate your condition and discuss treatment with you before recommending a procedure.
(source: American Refractive Surgery Council)