effect of 4-horizontal rectus muscle tenotomy on visual function and eye movement records in patients with infantile nystagmus syndrome without abnormal head posture and strabismus: a prospective study
نویسندگان
چکیده
purpose : to evaluate the effect of tenotomy on visual function and eye movement records in patients with infantile nystagmus syndrome (ins) without abnormal head posture (ahp) and strabismus methods : a prospective interventional case-series of patients with ins with no ahp or strabismus. patients underwent 4-horizontal muscle tenotomy. best corrected visual acuity (bcva) and eye movement recordings were compared pre and postoperatively. results : eight patients were recruited in this study with 3 to 15.5 months of follow-up. patients showed significant improvement in their visual function. overall nystagmus amplitude and velocity was decreased 30.7% and 19.8%, respectively. improvements were more marked at right and left gazes. conclusion : tenotomy improves both visual function and eye movement records in ins with no strabismus and eccentric null point. the procedure has more effect on lateral gazes with worse waveforms, thus can broaden area with better visual function. we recommend this surgery in patients with ins but no associated ahp or strabismus. iranian journal of ophthalmology 201325(3):190-196 © 2013 by the iranian society of ophthalmology
منابع مشابه
Effect of 4-Horizontal Rectus Muscle Tenotomy on Visual Function and Eye Movement Records in Patients with Infantile Nystagmus Syndrome without Abnormal Head Posture and Strabismus: A Prospective Study
Purpose: To evaluate the effect of tenotomy on visual function and eye movement records in patients with infantile nystagmus syndrome (INS) without abnormal head posture (AHP) and strabismus Methods: A prospective interventional case-series of patients with INS with no AHP or strabismus. Patients underwent 4-horizontal muscle tenotomy. Best corrected visual acuity (BCVA) and eye movement record...
متن کاملHorizontal rectus muscle tenotomy in children with infantile nystagmus syndrome: a pilot study.
PURPOSE We wished to determine the effectiveness of horizontal rectus tenotomy in changing the nystagmus of children with infantile nystagmus syndrome. DESIGN This was a prospective, noncomparative, interventional case series in five children with varied sensory and oculographic subtypes of congenital nystagmus (including asymmetric (a)periodic alternating nystagmus) and no nystagmus treatmen...
متن کاملEye-movement-based assessment of visual function in patients with infantile nystagmus syndrome.
PURPOSE Infantile Nystagmus Syndrome (INS) is an ocular motor system dysfunction characterized by the rhythmic to-and-fro oscillations of the eyes. Traditionally, the assessment of INS visual function solely focused on null- or primary-position visual acuity. Our purpose is to use the past four decades of INS research to introduce a more complete assessment of visual function in patients with I...
متن کاملAbnormal Head Position in Infantile Nystagmus Syndrome
Infantile nystagmus is an involuntary, bilateral, conjugate, and rhythmic oscillation of the eyes which is present at birth or develops within the first 6 months of life. It may be pendular or jerk-like and, its intensity usually increases in lateral gaze, decreasing with convergence. Up to 64% of all patients with nystagmus also present strabismus, and even more patients have an abnormal head ...
متن کاملthe effects of horizontal recti surgery on clinical and paraclinical indices in congenital nystagmus
purpose: to determine the effect of horizontal recti surgery on visual acuity and head posture and electronystagmographic indices in patients with congenital nystagmus. methods: this prospective comparative case series was conducted on 58 patients with congenital nystagmus who were referred to our clinic over three years. patients were divided into three groups: the first group (29 cases) had h...
متن کاملHorizontal rectus tenotomy in patients with congenital nystagmus: results in 10 adults.
OBJECTIVE We wished to determine the effectiveness of horizontal rectus tenotomy in changing the nystagmus of patients with congenital nystagmus and, secondarily, how their visual function changed. DESIGN This was a prospective, noncomparative, interventional case series. PARTICIPANTS Ten adult patients with varied associated sensory defects and oculographic subtypes of congenital nystagmus...
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عنوان ژورنال:
journal of current ophthalmologyجلد ۲۵، شماره ۳، صفحات ۱۹۰-۱۹۶
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