Flickering Vision in High Myopia: Causes and Concerns - Ophthalmology

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Flickering vision, especially in individuals with high myopia (myopia greater than -6.00 diopters), can be concerning and warrants careful evaluation. Your description of experiencing flickering in the central vision of your left eye, particularly after blinking, is noteworthy. While you have undergone several retinal examinations that have shown no abnormalities, the emergence of new symptoms such as flickering can understandably lead to anxiety and concern about potential underlying issues.

In high myopia, the structure of the eye is altered, often leading to changes in the vitreous body, which is the gel-like substance filling the eye. As the vitreous gel undergoes liquefaction or detachment, it can create visual disturbances, including floaters and flickering sensations. The flickering you describe could be related to the interaction between the vitreous and the retina, particularly if there are any areas of traction or if the vitreous is pulling on the retina during blinking. This phenomenon is not uncommon in individuals with high myopia, where the elongated shape of the eye can predispose one to such changes.

It’s important to note that while flickering can be benign, it can also be a sign of more serious conditions, such as retinal tears or detachment, especially if accompanied by other symptoms like flashes of light or a sudden increase in floaters. Since you mentioned that the flickering occurs in the central vision and is noticeable during blinking, it is essential to communicate this clearly to your eye care provider during your upcoming appointment.
To ensure that your concerns are adequately addressed, consider the following tips for your visit:
1. Prepare a List of Symptoms: Write down all the symptoms you have been experiencing, including the frequency and duration of the flickering, any associated symptoms (like flashes or increased floaters), and how they affect your daily life.

2. Describe Changes: Clearly explain any changes in your vision since your last examination, emphasizing the new flickering symptom and its characteristics.

3. Ask Specific Questions: Prepare specific questions for your doctor, such as whether the flickering could indicate a need for further testing or treatment, and what steps you should take if the symptoms worsen.

4. Bring a Support Person: If possible, bring someone with you to the appointment who can help communicate your concerns or take notes during the discussion.

Regarding your concern about potential laser treatment, it is typically reserved for specific conditions such as retinal tears or detachments. If your retina is healthy and the flickering is determined to be benign, your doctor may recommend monitoring your symptoms rather than immediate intervention.

In the meantime, managing anxiety related to your vision can be beneficial. Engaging in relaxation techniques, such as deep breathing or mindfulness, can help alleviate stress. Additionally, maintaining regular follow-ups with your eye care provider is crucial to monitor any changes in your condition.

In conclusion, while flickering vision can be a common occurrence in high myopia, it is essential to have a thorough evaluation to rule out any serious conditions. Your proactive approach in seeking medical advice and preparing for your appointment will help ensure that your concerns are addressed effectively.