Post-Laser Vision Distortions: What to Expect - Ophthalmology

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Post-laser issues


Hello Doctor, in March, I noticed some slight distortion in straight lines when looking to the side with my left eye on the Amsler grid.
I later visited an ophthalmologist who mentioned a small retinal fold and performed laser treatment at that time.
I also had a CT scan of my brain, which showed no abnormalities.
Three days ago, I returned for a dilated eye exam, and the doctor said the laser treatment has stabilized and there are no additional tears.
However, after returning home, I checked the Amsler grid again and still noticed some distortion when looking to the left with my left eye (though it hasn't worsened).
Is this normal?

Hsuan, 20~29 year old female. Ask Date: 2024/05/13

Dr. Gao Pilin reply Ophthalmology


Hello: First of all, even though the retinal folds have been treated and stabilized with laser therapy, the structure of the retina may still have underlying pathology, as the laser treatment only fixes the condition rather than restoring it to its original state.
This may lead to continued sensations of distortion or aberration.
In summary, it is not uncommon to experience slight distortion after treatment, but it is important to continue monitoring these changes.
If you notice any significant changes, please visit an ophthalmologist for further evaluation of your condition and to ensure your eye health.

Reply Date: 2024/05/13

More Info


After undergoing laser eye surgery, experiencing visual distortions such as straight lines appearing curved or wavy can be concerning. In your case, the observation of slight distortion in your left eye when viewing a grid pattern, particularly when looking to the side, suggests that there may be some underlying issues related to the retina or the cornea.
The fact that your ophthalmologist noted a small wrinkle in the retina and subsequently treated it with laser therapy indicates that they are actively monitoring and addressing any potential complications. Retinal wrinkles, or folds, can occur due to various reasons, including changes in the vitreous gel that fills the eye or as a result of previous surgeries. The laser treatment aims to stabilize the retina and prevent further complications.

It is reassuring to hear that a follow-up examination with dilation showed that the laser treatment has stabilized your condition and that there are no new holes or tears in the retina. However, the persistence of visual distortion, even if it has not worsened, can be attributed to several factors:
1. Residual Effects of Surgery: After laser surgery, it is not uncommon for patients to experience temporary visual disturbances as the eye heals. The cornea may take time to stabilize, and any irregularities can lead to visual distortions.

2. Retinal Changes: Even after treatment, the retina may still exhibit some residual effects from the initial wrinkle. The brain may take time to adapt to these changes, and visual distortions can persist during this adaptation period.

3. Visual Processing: The brain plays a significant role in how we perceive visual information. If there are any changes in the eye's structure, the brain may take time to recalibrate its processing of visual signals, leading to temporary distortions.

4. Dry Eye Syndrome: Post-surgery, many patients experience dry eyes, which can exacerbate visual distortions. Ensuring proper hydration and using artificial tears can help alleviate some of these symptoms.

5. Need for Further Evaluation: If the distortion continues or worsens, it is crucial to return to your ophthalmologist for further evaluation. They may consider additional imaging or tests to rule out any other underlying issues.

In terms of what to expect moving forward, it is essential to maintain regular follow-up appointments with your eye care provider. They can monitor your healing process and provide guidance on managing any ongoing symptoms. If the distortion persists or if you experience any new symptoms, such as flashes of light or an increase in floaters, you should seek immediate medical attention.

In conclusion, while some degree of visual distortion can be normal after laser surgery, particularly following retinal treatment, it is vital to keep an open line of communication with your ophthalmologist. They can provide reassurance, monitor your condition, and determine if any further interventions are necessary. Your visual health is paramount, and addressing any concerns promptly will help ensure the best possible outcome.

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