Is Temporary Blurred Vision After Warm Compress Normal? - Ophthalmology

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Is it normal to experience temporary blurred vision after applying a hot compress?


Hello Doctor: I have moderate dry eye syndrome in my left eye, so I have a habit of using a warm towel to compress both eyes for about 3 minutes after brushing my teeth in the morning.
However, I notice that after each warm compress, I experience temporary blurred vision in both eyes, which lasts for about 5 to 10 minutes before returning to normal.
If I apply artificial tears, it takes about 1 to 2 minutes to return to normal.
What could be the reason for this? Is it possible that the cornea becomes foggy due to the warm compress? Thank you.

Mr. Chen, 40~49 year old female. Ask Date: 2017/07/26

Dr. Gao Pilin reply Ophthalmology


Hello Mr.
Chen: The use of a warm towel on the eyes should have minimal impact on the eye's structure or vision.
The primary effect is likely on the tear film.
Heat application may cause a redistribution of the tear film, which can lead to temporary blurred vision.
At the E-Hospital in Puzi, Taiwan, the ophthalmology department is open Monday to Friday from 8:00 AM to 12:00 PM and Wednesday afternoons from 1:00 PM to 4:30 PM.
Online responses should only be used as a reference; it is essential to seek care at a medical facility if necessary.
I hope to have the opportunity to serve you.
Sincerely, Gao Pi-Lin.

Reply Date: 2017/07/26

More Info


Experiencing temporary blurred vision after using a warm compress is a phenomenon that can occur for several reasons, particularly in individuals with dry eye syndrome. When you apply a warm compress to your eyes, the heat can help to loosen any debris or blockages in the meibomian glands, which are responsible for producing the oily layer of your tears. This process can enhance the quality of your tear film, providing better lubrication to the eyes. However, the temporary blurred vision you experience may be attributed to a few factors.

Firstly, the warmth from the compress can cause the tear film to become more fluid, which may lead to a temporary change in the refractive properties of your tears. This can result in a momentary blurriness as your eyes adjust to the new tear film dynamics. Additionally, if there is any residual moisture or oil on the surface of your eyes after removing the compress, it can also contribute to a temporary haze until your tears stabilize.

Secondly, if you have dry eyes, the application of heat can stimulate tear production, but it may also cause a transient imbalance in the tear film. This imbalance can lead to a temporary blurring of vision until your eyes have a chance to redistribute the tears evenly across the surface of your cornea. The fact that using artificial tears helps restore your vision more quickly suggests that your eyes may benefit from additional lubrication, which can help clear up the blurriness.

Moreover, it's important to consider the condition of your cornea. If you have any underlying corneal issues, such as dryness or irregularities, the application of heat could potentially exacerbate these conditions temporarily, leading to blurred vision. However, since your vision returns to normal within a few minutes, it is unlikely that there is any significant damage occurring.

In summary, the temporary blurred vision you experience after using a warm compress is likely a normal response related to the dynamics of your tear film and the effects of heat on your eyes. It is generally not a cause for concern, especially since your vision clears up relatively quickly. However, if you find that the blurriness persists or worsens over time, or if you experience other symptoms such as pain, redness, or significant changes in vision, it would be advisable to consult with an eye care professional for a thorough evaluation.

In the meantime, continue to use warm compresses as they can be beneficial for managing dry eye symptoms. Additionally, maintaining a regular schedule of artificial tears can help keep your eyes lubricated and comfortable. If you have any concerns about your dry eye condition or the effectiveness of your current treatment regimen, discussing these with your eye doctor can provide you with tailored advice and potential adjustments to your care plan.

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