Infiltrative ophthalmopathy is found in 5-10% of patients with Graves disease and resembles exophthalmos, except that the blurry or double vision is acquired because of weakness in the ocular muscles of the eye. In addition, there is no known correlation with the patient's thyroid levels.
Infiltrative ophthalmopathy manifests in a portion of patients with Graves disease, displaying similarities to exophthalmos but resulting from compromised ocular muscle strength, leading to impaired vision. Crucially, it does not correlate with fluctuations in thyroid hormone levels.