Eye Pressure and Blind Spots: Causes and Concerns - Ophthalmology

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Hello! Thank you for your questions regarding your eye health concerns. Based on your description, it seems you are experiencing a combination of symptoms that could be related to eye strain, pressure, and possibly some underlying conditions. Let’s break down your concerns.


Eye Pressure and Sensations of Pressure
You mentioned feeling a sensation of pressure in your right eye, especially after prolonged use of your phone. This is quite common among individuals who spend extended periods looking at screens, particularly if they have high myopia (nearsightedness) like yourself. When you focus on a screen for too long, your eye muscles can become fatigued, leading to discomfort, a feeling of pressure, and sometimes even a sensation of the eye being "bulging."
Your eye pressure readings of 22-23 mmHg are slightly elevated, as normal intraocular pressure typically ranges from 10 to 21 mmHg. However, your doctor noted that your corneal thickness is around 550 micrometers, which can influence the interpretation of your eye pressure. Thicker corneas can sometimes give a falsely elevated reading of intraocular pressure, which is why it's essential to consider this factor when evaluating your risk for conditions like glaucoma.


Blind Spots and Visual Disturbances
Regarding the small blind spot you perceive in your right eye, it’s good to hear that your eye doctor has conducted thorough examinations, including the Amsler grid test and imaging of the retina and macula, which returned normal results. This suggests that there may not be any significant retinal issues causing your symptoms.
Blind spots can sometimes be attributed to several factors, including:
1. Visual Fatigue: Prolonged screen time can lead to visual fatigue, which might cause temporary disturbances in your vision, including blind spots or flickering lights.


2. Migraine Aura: Some individuals experience visual disturbances, including blind spots, as part of a migraine aura, even without the headache. This can occur independently of headaches and may be triggered by stress or prolonged visual tasks.

3. Retinal Issues: While your recent examinations were normal, conditions like retinal tears or detachment can cause blind spots. However, these are usually accompanied by other symptoms, such as flashes of light or a sudden increase in floaters.

4. Neurological Factors: Since you have a history of headaches and have undergone a CT scan that was normal, it’s less likely that there’s a significant neurological issue. However, if the blind spot persists or worsens, further evaluation by a neurologist may be warranted.


Recommendations
1. Limit Screen Time: Try to take regular breaks when using your phone or computer. The 20-20-20 rule is helpful: every 20 minutes, look at something 20 feet away for at least 20 seconds.

2. Eye Exercises: Simple eye exercises can help alleviate strain. Rolling your eyes, blinking frequently, and focusing on distant objects can help.

3. Regular Eye Check-ups: Continue to have regular check-ups with your eye care provider to monitor your eye pressure and overall eye health, especially given your myopia and family history of glaucoma.

4. Manage Headaches: If your headaches persist, consider discussing with your healthcare provider about potential triggers and management strategies, which may include lifestyle changes or medication.

5. Stay Hydrated and Rested: Ensure you are well-hydrated and getting enough sleep, as both can significantly impact eye comfort and overall health.

If your symptoms persist or worsen, it’s crucial to follow up with your eye doctor or a specialist to rule out any serious conditions. Your health and peace of mind are paramount, so don’t hesitate to seek further evaluation if needed. Take care!