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Query: UMLS:C0038379 (strabismus)
 9,317 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Anterior segment ischemia after strabismus surgery is a rare occurrence. Risk factors include single-stage surgery of three or more muscles in one eye, dysthyroid eye disease, and advanced age. The authors report a case of anterior segment ischemia after single-stage surgery of two horizontal muscles without previous reported risk factors. However, the patient had received radiotherapy for nasopharyngeal carcinoma more than 20 years ago. The case was successfully treated with systemic steroids but with reduced best-corrected visual acuity. Previous radiotherapy in the related orbital field may be a new risk factor for this condition.
J Pediatr Ophthalmol Strabismus
PMID:Anterior segment ischemia after two-muscle surgery in a patient with radiation-treated nasopharyngeal carcinoma. 1828 62

Anterior segment ischemia is a rare but well-recognized complication after strabismus surgery, involving multiple extraocular muscles. We report a case of traumatic left sixth nerve palsy in a 32-year-old man who developed anterior segment ischemia after left medial rectus muscle recession and partial tendon transfer of the vertical rectus muscles to the lateral rectus, augmented by lateral fixation sutures. The corneal edema and anterior chamber reaction cleared upon removal of the lateral fixation sutures and institution of steroids and cycloplegics. The possible role of lateral fixation sutures in anterior segment ischemia is discussed.
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PMID:Resolution of anterior segment ischemia after the removal of lateral fixation sutures. 1859 54

Takayasu's, or "pulseless," disease is a rare, idiopathic, chronic granulomatous vasculitis that affects large arterial blood vessels. Ocular manifestations occur as a consequence of obliteration of the carotid artery, and ocular ischemia may develop. A 14-year-old girl with progressive visual loss and ocular ischemic syndrome secondary to Takayasu's disease is described.
J Pediatr Ophthalmol Strabismus
PMID:Takayasu's disease and secondary ocular ischemic syndrome. 2012 57

Preoperatively, strabismus surgeons need to obtain informed consent, identify any ocular or systemic risk factors, decide on the preferred method of anesthesia, and determine whether the patient is an appropriate candidate for an adjustable suture technique. Three major categories of complications should be listed on the consent form: Loss of vision, double vison, and need for reoperation. If a patient is at particulary high risk to have one of these complications, then the surgeon should emphasize this point during the preoperative discussion. The incidence of visual loss after strabismus surgery due to anterior segment ischemia, retinal detachment, or endophthalmitis is approximately 1 in 7,400 cases. The preferred method of anesthesia depends on the procedure planned, the age and general health status of the patient, and whether or not an adjustable suture technique is to be utilized. At the conclusion of the preoperative discussion, the patient should be well informed and comfortable with the choice or procedure, have reasonable postoperative expectations in terms of diplopia, and be prepared for any unexpected complications.
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PMID:Preoperative issues in adult strabismus. 2114 41

Strabismus due to a lost rectus muscle is uncommon. Surgical treatment of the condition by means of scleral augmented myopexy of the vertical rectus muscles can reduce the potential for anterior segment ischemia by leaving the vascular supply intact. We report a successful use of expanded polytetrafluoroethylene in this procedure to correct long-term exotropia caused by a lost medial rectus muscle.
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PMID:Myopexy of the vertical rectus muscles using expanded polytetrafluoroethylene for management of a lost medial rectus muscle. 2116 81

The authors developed a new surgical procedure for use in treating pure cyclodeviation. This procedure was accomplished by a simple muscle transposition technique without tenotomy. Satisfactory postoperative results were achieved without postoperative complications. This procedure may be useful for treating cyclodeviations, with minimal risk of surgical complications, particularly anterior segment ischemia.
J Pediatr Ophthalmol Strabismus 2010 May 21
PMID:A new muscle transposition procedure to correct cyclodeviation without tenotomy. 2121 55

A 12-year-old girl with neurofibromatosis type 1 was referred for pain and blurred vision in her right eye for the past 2 weeks. Neovascular glaucoma associated with peripheral retinal ischemia was diagnosed and she was treated with retinal photocoagulation after intravitreal bevacizumab injection and trabeculectomy.
J Pediatr Ophthalmol Strabismus 2010 May 21
PMID:Unusual association of peripheral retinal ischemia-induced neovascular glaucoma and neurofibromatosis type 1. 2121 63

White-eyed medial wall blowout fracture associated with muscle entrapment is rare. It may present with symptoms consistent with an intracranial injury, delaying the diagnosis and putting the patient at risk for permanent damage. A case of an isolated white-eyed medial wall fracture associated with persistent bradycardia on abduction secondary to oculocardiac reflex as well as limited abduction mimicking sixth-nerve weakness is presented. Patients with white-eyed medial wall blowout fracture with muscle entrapment can present with oculocardiac reflex symptoms, pain, diplopia, and strabismus in the absence of any signs on ocular examination except for abnormal motility. Computed tomography imaging of the orbit should be performed to confirm the diagnosis, followed by immediate surgical intervention to avoid ischemia and permanent injury.
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PMID:White-eyed medial wall blowout fracture mimicking head injury due to persistent oculocardiac reflex. 2195 89

The authors present the youngest reported child with proliferative sickle retinopathy. A 3-year, 6-month-old boy presented with leukocoria in the left eye, left esotropia, and dense free-floating white vitreous cells obscuring the fundus, suspicious for endophytic retinoblastoma. Ultrasonography depicted dense debris in the vitreous with no distinct calcific echo or retinal mass. Transcorneal, transzonular fine-needle aspiration biopsy of the vitreous confirmed the presence of dehemoglobinized vitreous red blood cells without tumor. The opposite eye showed peripheral retinal pigment epithelial proliferation and fibrosis with angiographic peripheral ischemia. Hemoglobin electrophoresis disclosed sickle trait (AS). The findings were classified as proliferative sickle cell retinopathy with vitreous hemorrhage in the left eye and non-proliferative sickle cell retinopathy in the right eye. Leukocoria generally raises warnings for retinoblastoma, but can also reflect chronic vitreous hemorrhage.
J Pediatr Ophthalmol Strabismus 2011 Oct 11
PMID:Leukocoria and vitreous hemorrhage as the initial manifestation of sickle retinopathy in a 3-year, 6-month-old child with sickle trait (AS). 2198 30

A modification of the Jensen procedure is presented in which the lateral two-thirds of the superior and inferior rectus muscles and the center one-third of the lateral rectus are left uninvolved in order to reduce the possibility of anterior segment ischemia.
J Pediatr Ophthalmol Strabismus
PMID:Modification of the Jensen procedure. 2487 42


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