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Treatment of lagopthalmos can include both supportive care methods as well as surgical. If unable to receive surgery, artificial tears should be administered at least four times a day to the cornea to preserve the tear film. Leading up to a surgery, a patient can undergo a tarsorrhaphy which partially sews the eye shut temporarily to further protect the cornea as the patient waits for care. Multiple surgical treatments exist for Lagopthalmos but the most prevalent method includes weighing the upper eyelid down by surgically inserting a gold plate. Due to possible complications in conjunction with both the upper and lower eyelid, it might also be required to undergo a second surgery to tighten and elevate the lower eyelid to ensure both the upper and lower eyelids can fully close and protect the cornea.
Nocturnal lagophthalmos is the inability to close the eyelids during sleep. It may reduce the quality of sleep, cause exposure-related symptoms or, if severe, cause corneal damage (exposure keratopathy). The degree of lagophthalmos can be minor (obscure lagophthalmos), or quite obvious.
It is often caused by an anomaly of the eyelid that prevents full closure. Treatment may involve surgery to correct the malposition of the eyelid(s). Punctal plugs may be used to increase the amount of lubrication on the surface of the eyeball by blocking some of the tear drainage ducts. Eye drops may also be used to provide additional lubrication or encourage the eyes to increase tear production.
The condition is not widely understood; in at least one instance a passenger was removed from a US Airways flight because of it.
Given that episodes tend to occur on awakening and managed by use of good 'wetting agents', approaches to be taken to help prevent episodes include:
- Environmental:
- ensuring that the air is humidified rather than dry, not overheated and without excessive airflow over the face. Also avoiding irritants such as cigarette smoke.
- use of protective glasses especially when gardening or playing with children.
- General personal measures:
- maintaining general hydration levels with adequate fluid intake.
- not sleeping-in late as the cornea tends to dry out the longer the eyelids are closed.
- Pre-bed routine:
- routine use of long-lasting eye ointments applied before going to bed.
- occasional use of the anti-inflammatory eyedrop FML (prescribed by an ophthalmologist or optometrist) before going to bed if the affected eye feels inflamed, dry or gritty
- use of a hyperosmotic (hypertonic) ointment before bed reduces the amount of water in the epithelium, strengthening its structure
- use the pressure patch as mentioned above.
- use surgical tape to keep the eye closed (if Nocturnal Lagophthalmos is a factor)
- Waking options:
- learn to wake with eyes closed and still and keeping artificial tear drops within reach so that they may be squirted under the inner corner of the eyelids if the eyes feel uncomfortable upon waking.
- It has also been suggested that the eyelids should be rubbed gently, or pulled slowly open with your fingers, before trying to open them, or keeping the affected eye closed while "looking" left and right to help spread lubricating tears. If the patient's eyelids feel stuck to the cornea on waking and no intense pain is present, use a fingertip to press firmly on the eyelid to push the eye's natural lubricants onto the affected area. This procedure frees the eyelid from the cornea and prevents tearing of the cornea.
Some of the adverse outcomes associated with intra-operative injuries include:
- Increased length of stay. This is due to ophthalmology consults required, associated infections and treatment.
- Increased costs. This is due to increased length of stay, cost of treating the complications.
- Pain and discomfort for the patient. Corneal abrasions are extremely painful for the patient and the treatment consists of drops and ointments applied in the eye which may cause further discomfort for the patient.
A symblepharon is a partial or complete adhesion of the palpebral conjunctiva of the eyelid to the bulbar conjunctiva of the eyeball. It results either from disease (conjunctival sequelae of trachoma) or trauma. Cicatricial pemphigoid and, in severe cases, rosacea may cause symblepharon. It is rarely congenital. and its treament
1 ocular movements restricted
2 diplopia
3 lagophthalmos
4 cosmetic cause
types.
Anterior, adhesion in Anterior part
Posterior, adhesion in only fornices
total, adhesion involves whole lens
Complications.
prophylaxis, 1 sweeping a glass rod around fornices several times a day
2 therapeutic soft contact lens
curative treatment t, 1 mobilising surrounding cornea, 2 conjunctival or buccal mucosa graft, 3 amniotic membrane transplant
With the eye generally profusely watering, the type of tears being produced have little adhesive property. Water or saline eye drops tend therefore to be ineffective. Rather a 'better quality' of tear is required with higher 'wetting ability' (i.e. greater amount of glycoproteins) and so artificial tears (e.g. viscotears) are applied frequently. Also recommended is Muro 128 5% Ointment (Sodium Chloride Hypertonicity Ophthalmic Ointment, 5%) which is a great relief overnight, it lasts longer than most regular tears and provides protection for those with severe cases.
Nocturnal Lagophthalmos (where one’s eyelids don’t close enough to cover the eye completely during sleep) may be an exacerbating factor, in which case using surgical tape to keep the eye closed at night can help.
Whilst individual episodes may settle within a few hours or days, additional episodes (as the name suggests) will recur at intervals.
Where episodes frequently occur, or there is an underlying disorder, one medical, or three types of surgical curative procedures may be attempted:
use of therapeutic contact lens, controlled puncturing of the surface layer of the eye (Anterior Stromal Puncture) and laser phototherapeutic keratectomy (PTK). These all essentially try to allow the surface epithelium to reestablish with normal binding to the underlying basement membrane, the method chosen depends upon the location & size of the erosion.
The most commonly employed method is to use tape or a general purpose adhesive dressing. Unfortunately the adhesive used on the tape or dressing will generally be inappropriate for this use. The adhesive strength may change when reaching body temperature, or over time.
As the operation progresses this can cause the adhesive to stop working and become gooey, allowing the eyelids to move apart, and leaving behind a sticky residue. This leaves the cornea exposed to epithelial drying and/or abrasions, sometimes caused by the tape that was originally applied to protect the cornea. Alternatively, the adhesive strength may increase, which upon removal can result in eyelid bruising, tears, or eyelash removal.
Rolls of tapes are often “laying around” the operating theatre or kept in health care workers' pockets.
Therefore, they can be a source of hospital-acquired infections (HAI's) such as Methicillin-resistant Staphylococcus aureus (MRSA) & Vancomycin-resistant Enterococcus (VRE), with a 2010 study showing that 50% of partially used tape rolls tested positive for MRSA, VRE or both.
Most tapes and dressings are non-transparent and so it is not possible to see if the patient’s eyes are opened or closed throughout the case. It is not uncommon for the eyelids to move open as the case progresses, even with adhesive tapes stuck onto them. In a practical sense, these medical tapes/dressings may be difficult to remove from a patient because their ends can become stuck flush with the skin. The possibility of tape removal causing trauma is also significantly increased in older people, people with sensitive skin, dermatitis, dehydration or side effects of medications.
As noted above, there have been several studies looking at the efficacy and safety of eye ointments/lubricants as adjuncts with tape or as a stand-alone management for intra-operative eye closure. Unfortunately many in common use have problems. Petroleum gel is flammable and is best avoided when electrocautery and open oxygen are to be used around the face. Preservative-free eye ointment is preferred, as preservative can cause corneal epithelial sloughing and conjunctival hyperemia.
They have been implicated in blurred vision in up to 75% of patients and they do not protect from direct trauma.
Specially made eyelid occlusion dressings are available commercially, such as EyeGard (manufactured in the USA by KMI Surgical and marketed by Sharn Anesthesia), EyePro (Andsco Medical Pty Ltd, Australia) and Anesthesia-Aid (Sperian Protection). These dressings overcome most of the problems associated with tape or general purpose dressings.
Risk factors of progressive and severe thyroid-associated orbitopathy are:
- Age greater than 50 years
- Rapid onset of symptoms under 3 months
- Cigarette smoking
- Diabetes
- Severe or uncontrolled hyperthyroidism
- Presence of pretibial myxedema
- High cholesterol levels (hyperlipidemia)
- Peripheral vascular disease
Even though some patients undergo spontaneous remission of symptoms within a year, many need treatment. The first step is the regulation of thyroid hormone levels by a physician.
There is some published evidence that a total or sub-total thyroidectomy may assist in reducing levels of TSH receptor antibodies (TRAbs) and as a consequence reduce the eye symptoms, perhaps after a 12-month lag. However, a 2015 meta review found no such benefits, and there is some evidence that suggests that surgery is no better than medication; and there are risks associated with a Thyroidectomy, as there are with long-term use of anti-thyroid medication.
Topical lubrication of the ocular surface is used to avoid corneal damage caused by exposure. Tarsorrhaphy is an alternative option when the complications of ocular exposure can't be avoided solely with the drops.
Corticosteroids are efficient in reducing orbital inflammation, but the benefits cease after discontinuation. Corticosteroids treatment is also limited because of their many side effects. Radiotherapy is an alternative option to reduce acute orbital inflammation. However, there is still controversy surrounding its efficacy. A simple way of reducing inflammation is to stop smoking, as pro-inflammatory substances are found in cigarettes.
Surgery may be done to decompress the orbit, to improve the proptosis, and to address the strabismus causing diplopia. Surgery is performed once the patient's disease has been stable for at least six months. In severe cases, however, the surgery becomes urgent to prevent blindness from optic nerve compression. Because the eye socket is bone, there is nowhere for eye muscle swelling to be accommodated, and, as a result, the eye is pushed forward into a protruded position. In some patients, this is very pronounced. Orbital decompression involves removing some bone from the eye socket to open up one or more sinuses and so make space for the swollen tissue and allowing the eye to move back into normal position and also relieving compression of the optic nerve that can threaten sight.
Eyelid surgery is the most common surgery performed on Graves ophthalmopathy patients. Lid-lengthening surgeries can be done on upper and lower eyelid to correct the patient's appearance and the ocular surface exposure symptoms. Marginal myotomy of levator palpebrae muscle can reduce the palpebral fissure height by 2–3 mm. When there is a more severe upper lid retraction or exposure keratitis, marginal myotomy of levator palpebrae associated with lateral tarsal canthoplasty is recommended. This procedure can lower the upper eyelid by as much as 8 mm. Other approaches include müllerectomy (resection of the Müller muscle), eyelid spacer grafts, and recession of the lower eyelid retractors. Blepharoplasty can also be done to debulk the excess fat in the lower eyelid.
An article in the New England Journal of Medicine reports that treatment with selenium is effective in mild cases.
A large European study performed by the European Group On Graves' Orbitopathy (EUGOGO) has recently shown that the trace element selenium had a significant effect in patients with mild, active thyroid eye disease. Six months of selenium supplements had a beneficial effect on thyroid eye disease and were associated with improvement in the quality of life of participants. These positive effects persisted at 12 months. There were no side effects.
A summary of treatment recommendations was published in 2015 by an Italian taskforce, which largely supports the other studies.
Mild cases are treated with lubricant eye drops or nonsteroidal anti-inflammatory drops. Severe cases threatening vision (corneal exposure or optic nerve compression) are treated with steroids or orbital decompression. In all cases, cessation of smoking is essential. Double vision can be corrected with prism glasses and surgery (the latter only when the process has been stable for a while).
Difficulty closing eyes can be treated with lubricant gel at night, or with tape on the eyes to enable full, deep sleep.
Orbital decompression can be performed to enable bulging eyes to retreat back into the head. Bone is removed from the skull behind the eyes, and space is made for the muscles and fatty tissue to fall back into the skull.
Eyelid surgery can be performed on upper and/or lower eyelids to reverse the effects of Graves' disease on the eyelids. Eyelid muscles can become tight with Graves' disease, making it impossible to close eyes all the way. Eyelid surgery involves an incision along the natural crease of the eyelid, and a scraping away of the muscle that holds the eyelid open. This makes the muscle weaker, which allows the eyelid to extend over the eyeball more effectively. Eyelid surgery helps reduce or eliminate dry eye symptoms.
For management of clinically active Graves' disease, orbitopathy (clinical activity score >2) with at least mild to moderate severity, intravenous glucocorticoids are the treatment of choice, usually administered in the form of pulse intravenous methylprednisolone. Studies have consistently shown that pulse intravenous methylprednisolone is superior to oral glucocorticoids both in terms of efficacy and decreased side effects for managing Graves' orbitopathy.
If left untreated, more serious complications could result, including birth defects in pregnancy, increased risk of a miscarriage, bone mineral loss, and in extreme cases, death. Graves' disease is often accompanied by an increase in heart rate, which may lead to further heart complications, including loss of the normal heart rhythm (atrial fibrillation), which may lead to stroke. If the eyes are proptotic (bulging) enough that the lids do not close completely at night, dryness will occur with a risk of a secondary corneal infection which could lead to blindness. Pressure on the optic nerve behind the globe can lead to visual field defects and vision loss, as well. Prolonged untreated hyperthyroidism can lead to bone loss, which may resolve when treated.