Fixation disparity

Fixation Disparity Visual Axes

Fixation Disparity

Fixation disparity is a condition that occurs when the eyes are not properly aligned during visual fixation. It is a type of binocular vision disorder that can lead to symptoms such as double vision, eye strain, and headaches. Fixation disparity can be caused by various factors, including ocular muscle imbalance, refractive errors, and neurological conditions.

Symptoms

Individuals with fixation disparity may experience the following symptoms:

• Double vision
• Eye strain
• Headaches
• Blurred vision
• Difficulty concentrating

Causes

The causes of fixation disparity can vary and may include:

• Ocular muscle imbalance
• Refractive errors
• Neurological conditions
• Eye fatigue
• Prolonged near work

Diagnosis

Fixation disparity can be diagnosed through a comprehensive eye examination that includes tests to assess binocular vision and eye alignment. These tests may include:

• Cover test
• Stereopsis test
• Phoria test
• Refraction test

Treatment

Treatment for fixation disparity depends on the underlying cause and may include:

• Vision therapy
• Prescription eyeglasses
• Prism lenses
• Ocular exercises

Prevention

To prevent fixation disparity, individuals can:

• Take regular breaks during prolonged near work
• Practice good eye hygiene
• Maintain a healthy lifestyle

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