Eye Focus Issues: Causes and Solutions for Blurry Vision

Q: Eye Focus Issues: Causes and Solutions for Blurry Vision

Hello： Based on the video you provided, I believe your issue may be insufficient convergence or strabismus. <br>Your left eye (or the right eye if mirrored) tends to drift outward after prolonged use. <br>Insufficient convergence can have various causes. <br>Here are some possibl

Focusing issues with the eyes?

Hello doctor, I am the person referred to as #198282.
According to what you said, it might be due to inaccurate focus adjustment when fatigued.
However, I still noticed this issue when I woke up this morning, although the frequency was less than in the evening.
Initially, it was normal, but later my right eye seemed to be focused inward, resulting in a blurred vision.
At that moment, as I mentioned, the text became unclear, but I could quickly refocus using my muscles to restore clarity.
This is most noticeable when reading.
I also noticed that when I take off my glasses, I experience similar blurriness at a distance from the chandelier in my home.
When the lights are on, I can see the size of the light changing due to focal distance.
According to what you said, it could also be due to incorrect prescription glasses, but my right eye has the correct prescription and doesn't change much, while my left eye is lacking 50 degrees.
I visited an ophthalmologist last week, and the OCT results were normal, but I only noticed these symptoms in the last few days.
I would like to ask if there is an issue with my focal adjustment or if there is a problem with the ciliary muscle? I am quite worried.
Could it also be due to fatigue? However, I have been busy lately and may need a few more days before I can see a doctor again and get new glasses.
I wanted to ask you first.
I apologize for the continuous questions.
I will remove the image after you have seen it.
Thank you.

Jiao Lv Da Xue Sheng, 20~29 year old female. Ask Date: 2023/07/09

Dr. Gao Pilin reply Ophthalmology

Hello: Based on the video you provided, I believe your issue may be insufficient convergence or strabismus.
Your left eye (or the right eye if mirrored) tends to drift outward after prolonged use.
Insufficient convergence can have various causes.
Here are some possible reasons:
1.
Prolonged near work: Spending extended periods focusing on nearby objects, such as reading books, using a computer, or a smartphone, can cause the eyes to strain to focus, leading to eye fatigue and insufficient convergence over time.
2.
Age factors: As we age, the eye's ability to accommodate gradually declines, especially after the age of 40, when the convergence ability may weaken, a condition known as presbyopia.
However, this is likely not the cause in your case.
3.
Vision problems: Conditions such as myopia, hyperopia, or astigmatism can lead to insufficient convergence.
When the eyes cannot focus correctly, it results in blurred or unclear vision.
4.
Eye fatigue: Prolonged eye strain, lack of breaks, or poor working conditions (such as inadequate lighting) can lead to eye fatigue, which in turn affects convergence.
If strabismus is suspected, a physician must conduct an on-site examination.
I recommend that you visit an ophthalmologist for an evaluation and provide them with the images you shared with me for reference.

Reply Date: 2023/07/09

More Info

Blurry vision and focus issues can stem from a variety of causes, and understanding these can help in managing the symptoms effectively. Based on your description, it seems you are experiencing fluctuating clarity in your vision, particularly with your right eye appearing to be out of focus at times, while your left eye may have an incorrect prescription. This can indeed be frustrating, especially when it affects your daily activities and studies.

Potential Causes
1. Refractive Errors: The most common cause of blurry vision is refractive errors, which include myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. If your left eye has a prescription that is 50 degrees less than necessary, it could lead to significant visual discomfort and difficulty focusing, especially when reading or looking at screens.

2. Accommodation Issues: The eye's ability to focus on near and far objects is known as accommodation, which is primarily controlled by the ciliary muscles. If these muscles are fatigued or strained, possibly due to prolonged periods of close work (like studying or using a computer), you may experience temporary blurry vision. This could explain why you can sometimes "pull" your focus back to clarity but struggle at other times.

3. Eye Fatigue: Extended periods of visual concentration can lead to eye strain, commonly referred to as digital eye strain or computer vision syndrome. Symptoms can include blurry vision, dry eyes, and headaches. If you have been particularly busy or stressed, this could exacerbate the issue.

4. Cataracts or Other Eye Conditions: While you mentioned that an OCT (Optical Coherence Tomography) scan showed no issues, it’s still important to consider that other conditions, such as early cataracts or even retinal issues, can cause similar symptoms. Regular check-ups are crucial, especially if symptoms persist.

5. Stress and Anxiety: Psychological factors can also play a role in visual perception. Stress and anxiety can lead to physical symptoms, including muscle tension around the eyes, which may contribute to focusing difficulties.

Solutions and Recommendations
1. Corrective Lenses: Since you suspect that your glasses prescription may not be accurate, it is essential to have a comprehensive eye exam to ensure that both eyes are properly corrected. If your left eye is undercorrected, this could lead to significant visual discomfort.

2. Rest and Breaks: Implementing the 20-20-20 rule can help alleviate eye strain. Every 20 minutes, take a 20-second break to look at something 20 feet away. This practice helps relax the ciliary muscles and reduces fatigue.

3. Proper Lighting: Ensure that your study area is well-lit to reduce strain on your eyes. Poor lighting can exacerbate focusing issues, especially when reading or working on a computer.

4. Eye Exercises: Simple eye exercises can help improve focus and reduce strain. For example, try focusing on a near object for a few seconds, then switch to a distant object, repeating this several times.

5. Consultation with an Eye Specialist: If symptoms persist despite corrective measures, it is crucial to follow up with an eye care professional. They may recommend further testing or treatments based on your specific symptoms.

6. Manage Stress: Since stress can impact your vision, consider incorporating stress management techniques such as mindfulness, meditation, or regular physical activity into your routine.

In conclusion, while it is understandable to feel anxious about your vision, many factors can contribute to blurry vision and focus issues. By addressing potential refractive errors, ensuring proper eye care, and managing stress, you can work towards improving your visual clarity. Remember, regular check-ups with your eye care provider are essential to monitor any changes in your vision and ensure that your eyes remain healthy.

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