Thyroid Eye Disease: Eyelid, Orbital & Oculoplastic Treatment in the UK

What is thyroid eye disease?

Thyroid eye disease (TED) — also known as Graves' ophthalmopathy or thyroid-associated orbitopathy — is an autoimmune condition in which the immune system attacks the soft tissues inside the eye socket (orbit). The result is inflammation and swelling of the extraocular muscles, orbital fat, and connective tissue, causing the eyes to be pushed forward (proptosis or exophthalmos), the eyelids to retract, and — in severe cases — the optic nerve or cornea to be threatened.

TED is closely linked to Graves' disease (autoimmune hyperthyroidism), though it can occur with hypothyroidism, Hashimoto's thyroiditis, or even in people with normal thyroid function. It is more common in women, typically presenting between the ages of 40 and 60, and is significantly worsened by smoking — the strongest modifiable risk factor.

TED is managed in two distinct phases: an active (inflammatory) phase, and a stable (inactive) phase. Medical treatments are used during the active phase; surgical reconstruction is considered once the disease has been stable for at least six months.

Symptoms and clinical features of TED

The earliest symptoms are often a gritty or dry feeling in the eyes, increased tearing, and light sensitivity — resulting from reduced ability to blink fully over a protruding eye. Patients often notice they look different in photos and that their eyes appear more prominent or that the whites are visible above and below the coloured iris (scleral show).

As the condition progresses, the following features may develop:

Proptosis (exophthalmos) — the eye is physically pushed forward by the swollen orbital contents. Asymmetric proptosis is common and can be marked (greater than 6 mm difference between sides).

Eyelid retraction — the upper eyelid sits higher than normal (upper lid retraction) and the lower lid may sit lower. This gives the characteristic 'staring' appearance. Upper lid retraction in TED results from overaction of the müller's muscle (stimulated by thyroid hormones) and from inferior rectus muscle tightness pulling the upper lid down via the levator mechanism, causing a secondary retraction.

Double vision (diplopia) — caused by restriction and thickening of the extraocular muscles, particularly the inferior and medial recti.

Corneal exposure — failure to close the eyelids fully over a protruding eye puts the cornea at risk of drying, ulceration and scarring.

Optic neuropathy — the most serious complication, caused by compression of the optic nerve at the orbital apex by swollen muscles. Features include reduced colour vision, reduced visual acuity, and visual field loss. This requires urgent treatment.

Medical treatment of active TED

During the active inflammatory phase, the priority is to control the autoimmune process, protect the cornea and optic nerve, and stabilise thyroid function. This is managed in close collaboration between the ophthalmologist and an endocrinologist.

Thyroid stabilisation: optimal thyroid control reduces the autoimmune drive. Radioiodine treatment for hyperthyroidism carries a risk of worsening TED and is used with caution; thyroidectomy or antithyroid drugs are often preferred.

Smoking cessation is strongly advised — smoking roughly doubles the risk of developing TED and significantly worsens its severity and treatment response.

Intravenous methylprednisolone (high-dose IV steroids) remains the standard first-line treatment for moderately severe active TED, given as weekly infusions over 12 weeks. It reduces the inflammatory activity in the orbit.

Teprotumumab, a monoclonal antibody targeting the IGF-1 receptor, has demonstrated significant efficacy in reducing proptosis and double vision in clinical trials. It is approved in the United States and is being evaluated in the UK and Europe.

Orbital radiotherapy (low-dose X-ray treatment to the orbit) is sometimes used as an adjunct to steroids for persistent active TED.

Corneal lubricants (hypromellose, carbomer, lacrilube) and moisture chamber spectacles are used throughout the active phase to protect the ocular surface.

Surgical rehabilitation: the oculoplastic surgeon's role

Once TED has been stable for at least six months — confirmed by clinical assessment and ideally a disease activity score — surgical reconstruction can be planned. The sequence of surgery matters: orbital decompression is performed first if needed, followed by squint surgery for diplopia, and eyelid surgery last, because each step can alter the position and function of the eyelids and eyes.

Orbital decompression: the volume of the bony orbit is surgically expanded (by removing a portion of the bony orbital walls and/or removing orbital fat) to allow the inflamed orbital contents to expand backwards, reducing proptosis. This is the most effective way to reduce prominent eye appearance and relieve optic nerve compression. It is performed by orbital surgeons with specific fellowship training.

Squint surgery: once the orbit is stable after decompression, residual diplopia caused by muscle restriction can be corrected with adjustable squint surgery. Mr Mohyudin's specialist training in strabismus surgery — alongside his oculoplastic expertise — puts him in a unique position to manage the strabismus component of TED rehabilitation.

Eyelid surgery: upper lid retraction is corrected by weakening (recessing) the müller's muscle and posterior lamella of the upper eyelid, allowing the lid to drop to its natural position. Lower lid retraction can be corrected with a spacer graft (using a small piece of tissue from the hard palate, ear cartilage, or a synthetic substitute) to lengthen the posterior lamella and raise the lower lid margin. Blepharoplasty to address excess skin and residual puffiness may also be appropriate.

Eyelid retraction surgery in TED

Upper eyelid retraction repair is one of the most common oculoplastic procedures in TED rehabilitation. When the upper lid sits too high — showing white sclera above the iris, or causing the characteristic 'staring' appearance — surgery can lower it to a natural position.

The procedure is typically performed under local anaesthetic with sedation as a day case. The surgeon accesses the inner surface of the upper eyelid and recesses (lengthens) the müller's muscle and sometimes the posterior portion of the levator aponeurosis. The amount of recession is titrated to the degree of retraction. Because eyelid position is assessed with the patient cooperative and upright, local anaesthetic surgery allows real-time adjustment, which gives superior accuracy of result.

Recovery involves bruising and swelling for 7–14 days. The lid position often appears low immediately post-operatively (intentionally over-corrected) and then rises slightly as swelling resolves. A proportion of patients need a minor adjustment procedure.

Lower eyelid retraction repair may use a spacer (hard palate mucosa or equivalent) sutured into the posterior lamella to provide structural support and elevate the lower lid margin, protecting the cornea and improving the cosmetic appearance.

These procedures require specific oculoplastic fellowship training and should be performed by surgeons with experience in TED management.

Seeing Mr Mohyudin for thyroid eye disease in Yorkshire

Mr Mohamed Mohyudin sees patients with thyroid eye disease at his private clinic at Spire Elland Hospital. His dual fellowship training in oculoplastics and paediatric ophthalmology / strabismus gives him specific expertise in the eyelid and strabismus aspects of TED rehabilitation.

For new patients with TED, the initial consultation includes a full assessment of eyelid position (including margin reflex distances, eyelid retraction measurements, exophthalmometry to measure proptosis), ocular motility, corneal health, and optic nerve function. Where orbital decompression is required, Mr Mohyudin works in collaboration with orbital and oculoplastic colleagues who have specific decompression expertise.

If you have been diagnosed with thyroid eye disease — or suspect you may have it — an early consultation is worthwhile so that your disease activity can be monitored and the appropriate time for surgical rehabilitation planned.

To book: call 01422 324000 or email mnmohyudin@doctors.org.uk.