An orbital decompression for severe dysthyroid exophthalmos

Area of Science:

• Ophthalmology
• Neurosurgery
• Surgical Innovation

Background:

• Nonspecific orbital inflammatory disease and dysthyroid orbitopathy can cause severe proptosis.
• Existing decompression methods may not achieve optimal results for significant eye displacement.

Purpose of the Study:

• To present a novel surgical procedure for maximal orbital decompression.
• To evaluate the efficacy and safety of this technique in patients with severe proptosis.

Main Methods:

• A four-wall orbital decompression via lateral orbitotomy, canthotomy, and inferior cul-de-sac incision.
• Performed on seven orbits in four patients with significant exophthalmometry readings.
• Utilized a 30-mm incision for extensive orbital wall removal.

Main Results:

• Achieved 10-17 mm reduction in proptosis, exceeding results from other procedures.
• Demonstrated consistent and significant improvement in eye placement.

Conclusions:

• The described four-wall decompression technique is highly effective for severe proptosis.
• Caution is advised for patients over 65 due to potential spinal fluid leak risk.
• Requires an experienced neuro-ophthalmic orbital surgical team for safe execution.