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Dr. Dan B.
Dr. Dan B., Board Certified Ophthalmologist
Category: Eye
Satisfied Customers: 3160
Experience:  Eye surgeon experienced in cataracts, glaucoma, retina & neuro-ophthalmology
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I have just been diagnosed with an eye muscle imbalance. I

Resolved Question:

I have just been diagnosed with an eye muscle imbalance. I am 34 years old, and struggling with dizziness and eye fatigue. My doctor said I have probably had this condition for years, but I was wondering why it just started bothering me? Also, I am having a really hard time adjusting to my prism lenses. My eye doctor double checked the prescription and said it was fine. Can you give me an idea when I might start feeling better? Are there any other tests I need to have?
Submitted: 4 years ago.
Category: Eye
Expert:  Dr. Dan B. replied 4 years ago.

Hello, and thank you for your inquiry.

 

There are many reasons why people can have an eye muscle imbalance. It sounds like, from what your eye doctor has said (probably have had it for years), that this has been a hidden or 'latent' eye muscle imbalance which has been there in some small degree since childhood. At what age a person's eye muscle imbalance begins to decompensate is very individual--that can even occur much later in life.

 

Does your doctor suspect or did he do any tests to detect any medical condition that may have caused your eye muscle imbalance, such as thyroid dysfunction or myasthenia gravis?

Customer: replied 4 years ago.
I do have hypothyroidism, but it is well controlled. My family doctor performed a balance test and did a full blood panel, and everything came back normal. My eye doctor checked my eye health, eye pressure, looked for double vision, and evaluated my perephial vision. All was fine. I do have a malformed ear that is a birth defect. It has been suggested at times that the muscles on my right side may be weaker due to poor utero development, but I really having noticed anything until recently. My only symptom has been mild but very annoying vertigo. I have been wearing the prism glasses for about two weeks, and haven't noticed much improvement. They make my eyes feel "weird" and give me a mild headache when I wear them for long periods of time.
Expert:  Dr. Dan B. replied 4 years ago.

It can take several days to adjust to a new prescription, especially one with prisms in it. However, I think two weeks should be the maximum time needed for adjustment. It is possible that your eye muscle imbalance fluctuates from day to day (that can be because of a disease called myasthenia gravis--which can be tested for, but the blood test can be falsely negative in those people in whom it only affects the eyes; but it also can fluctuate if your eye muscle imbalance becomes more pronounced with fatigue, illness, or visual inattentiveness.

 

Was double vision one of your initial complaints? Or was it just strictly dizziness and eye fatigue?

 

What do you mean by eye fatigue? Please describe the symptoms that prompted your visit to your eye doctor.

Customer: replied 4 years ago.
I was driving down the road one day and turned suddenly, and the world seemed to go off center for a few seconds then re-adjust. That is basically what I've faced several times a day for the past two months. I go to focus on something, and it just seems "off." I notice it more on days that I do a lot of computer work than when I am just playing around the house. My eyes also feel very tired by the end of each day, and I usually have a mild headache between my eyes. I went back to the eye doctor and she did a slight adjustment to my prescription this week, but I haven't noticed much change. I have never had blurred or double vision.
Expert:  Dr. Dan B. replied 4 years ago.

Are you near sighted (myopic = a minus in front of the first part of the glasses prescription) or far sighted (hyperopic = a plus in front of the first part of the prescription).

 

How many hours a day are you doing sustained near vision tasks such as reading or computer work and for how long has this been the case?

Customer: replied 4 years ago.
I am near sighted, -1.25 in my left eye and -1.75 in my right eye. I am a financial analyst, so I spend 6-8 hours a day on the computer and reading spreadsheets. I have been doing this for about 15 years.
Expert:  Dr. Dan B. replied 4 years ago.

A phenomenon that can be found in younger individuals is something called accommodative spasm. This is a situation where the eyes spend so much time focused on near objects that the muscles that allow that near focusing start to spasm, which can cause headaches and difficulty changing planes of focus, such as when you're driving.

 

Often times people with this problem benefit solely from a dilated eye exam (the drops used to dilate the eyes can sometimes break the spasm). A refraction (test for glasses) should be done after your eyes are dilated and this can sometimes reveal a true glasses prescription which is less myopic and more hyperopic than what you're currently wearing because the accommodative muscles have been spasming for so long (it can simulate more myopia).

 

I'm not sure if your doctor saw that your eyes turned in excessively when you read and that's maybe why you have prism in your glasses, but if you do have some accommodative spasm and there is not a significant change in your refractive error even when measured after you're dilated, then putting a bifocal segment in your glasses may help with this discomfort and your visual symptoms.

 

Does this make sense and help to shed light on your concerns?

 

I am happy to be able to help you today. If you would be so kind, please help me get credit for my efforts in answering your questions and press the ACCEPT button for this encounter. I would also be happy to continue to answer any more questions you have until we have resolved your concern.

 

Also, any positive feedback and/or bonus you may feel prompted to provide would be welcomed and is appreciated.

 

DISCLAIMER: My opinion is solely informative and does not constitute a formal medical opinion or recommendation. For a formal medical opinion and/or recommendation you must be examined by your doctor.

Dr. Dan B., Board Certified Ophthalmologist
Category: Eye
Satisfied Customers: 3160
Experience: Eye surgeon experienced in cataracts, glaucoma, retina & neuro-ophthalmology
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