Seeing Mesh-Like Visual Disturbances Upon Waking: Causes and Concerns - Ophthalmology

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Seeing mesh-like visual disturbances upon waking can be concerning, especially when it occurs frequently and is accompanied by a change in posture, such as standing up quickly from a lying position. The symptoms you describe, particularly the transient nature of the visual disturbances lasting around 10 to 20 seconds, could be indicative of several potential causes.

One common explanation for experiencing visual disturbances upon standing is related to changes in blood pressure. When you stand up quickly, your body may not be able to adjust your blood pressure immediately, leading to a temporary drop in blood flow to the brain and eyes. This phenomenon is known as orthostatic hypotension. The visual disturbances you see, described as mesh-like or grid-like patterns, could be a result of this transient decrease in blood flow, which affects how your visual system processes information.

Another possibility is that these visual disturbances could be related to a condition known as visual migraines or migraine aura, which can occur even in the absence of a headache. These auras can manifest as various visual disturbances, including patterns, flashes of light, or even temporary vision loss. If you have a history of migraines or if there is a family history of migraine disorders, this could be a relevant factor.

Given your mention of hereditary anemia in your family, it is also worth considering whether your symptoms could be related to anemia. Anemia can lead to reduced oxygen delivery to tissues, including the eyes and brain, which might contribute to visual disturbances. If you suspect that you might be anemic, it would be prudent to have your blood levels checked, including hemoglobin and hematocrit levels.

Additionally, you mentioned wearing orthokeratology lenses (corneal reshaping lenses). While these lenses are generally safe and effective for correcting refractive errors, any changes in your vision or discomfort while wearing them should be discussed with your eye care professional. It is possible that the lenses could be contributing to your symptoms, especially if they are not fitting properly or if there is an underlying issue with your cornea.

In summary, the mesh-like visual disturbances you are experiencing upon waking could be due to a combination of factors, including orthostatic hypotension, visual migraines, or even anemia. It is essential to monitor the frequency and duration of these symptoms and consult with a healthcare professional for a thorough evaluation. They may recommend tests such as blood pressure measurements, blood tests to check for anemia, and a comprehensive eye examination to rule out any ocular issues related to your contact lenses.

In the meantime, consider the following recommendations:
1. Hydration: Ensure you are well-hydrated, as dehydration can exacerbate symptoms of orthostatic hypotension.

2. Gradual Position Changes: When getting out of bed, try to sit up slowly and allow your body to adjust before standing.

3. Regular Eye Check-ups: Keep regular appointments with your eye care provider to monitor the health of your eyes and the fit of your contact lenses.

4. Blood Tests: If you suspect anemia, consult your primary care physician for blood tests to assess your hemoglobin levels.

Ultimately, addressing these symptoms with a healthcare provider will help ensure that any underlying conditions are identified and managed appropriately.