What is Dysthyroid optic neuropathy?

Dysthyroid optic neuropathy (DON) is a sight-threatening complication of thyroid eye disease (TED), characterized by thyroid-related impairment of visual function, leading to permanent sight loss. To avoid blindness, prompt diagnosis and timely intervention are required.

What does Orbitopathy mean?

Thyroid associated orbitopathy, also known as Graves’ orbitopathy, is typically a self-limiting autoimmune process associated with dysthyroid states. The clinical presentation may vary from very mild disease to severe irreversible sight-threatening complications.

What is lateral flare thyroid eye disease?

The typical laterally enhanced retraction seen in Graves’ disease is displayed in figure 1 FROM D to F (right eye). This sign, also called “lateral lid flare”, is assumed by some authors to be an indication of eyelid inflammation and fibrosis of the lateral levator horn.

What is thyroid associated ophthalmopathy?

Thyroid-associated orbitopathy (TAO), frequently termed Graves ophthalmopathy, is part of an autoimmune process that can affect the orbital and periorbital tissue, the thyroid gland, and, rarely, the pretibial skin or digits (thyroid acropachy).

Can hypothyroidism cause optic neuropathy?

Sight-threatening compressive optic neuropathy is one of the most feared complications of thyroid ophthalmopathy. However, the occurrence of optic neuropathy is rare and constitutes about 4% to 8% of all complications.

What is lid lag hyperthyroidism?

Lid lag means delay in moving the eyelid as the eye moves downwards. It is a common finding in thyroid disease when it is known as Graefe’s sign.

Can grave eye bulging be reversed?

Graves’ eye disease often improves on its own. However, in some patients symptoms may persist despite treatment of the overactive thyroid gland and specific eye therapies.

What is the difference between thyroid eye disease and Graves disease?

That means your body’s immune system attacks your own tissue by mistake. In Graves’ disease, your thyroid is affected. When you have Thyroid Eye Disease, it affects the muscle and fat behind your eyes. TED often develops in people who have Graves’ disease.