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To evaluate the clinical characteristics of strabismus in children undergoing bilateral cataract surgery.
We retrospectively reviewed the medical records of 56 children undergoing bilateral cataract surgery who had no evidence of strabismus before the surgery and a difference of less than two Snellen lines in postoperative best-corrected visual acuity between the two eyes.
Strabismus developed in 31 (55.4%) patients after cataract extraction. Age at the time of cataract diagnosis (P = 0.006) and extraction (P = 0.025) was significantly lower in the strabismus group than in the no-strabismus group. Exotropia (45.2%) was the prevalent type of strabismus, followed by esotropia (35.5%). Patients with cataracts extracted within the first 12 months of life comprised 51.6% of the strabismus group and 20% of the no-strabismus group (P = 0.026). Strabismus surgery was performed in 11 patients. In five aphakic patients with strabismus, the angle of deviation decreased significantly after secondary intraocular lens implantation, and strabismus surgery was not required.
Strabismus is a frequent complication following bilateral cataract surgery in childhood. Children undergoing bilateral cataract surgery, especially at an early age, should be followed carefully for the development of strabismus.
Seoul St. Mary's Hospital, Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea.
This article was published in the following journal.
Name: Japanese journal of ophthalmology
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Misalignment of the visual axes of the eyes. In comitant strabismus the degree of ocular misalignment does not vary with the direction of gaze. In noncomitant strabismus the degree of misalignment varies depending on direction of gaze or which eye is fixating on the target. (Miller, Walsh & Hoyt's Clinical Neuro-Ophthalmology, 4th ed, p641)
The making of a continuous circular tear in the anterior capsule during cataract surgery in order to allow expression or phacoemulsification of the nucleus of the lens. (Dorland, 28th ed)
Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)
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