Sensory adaptations in Duane's retraction syndrome

Abstract

Knowledge of the sensory status of patients with Duane's retraction syndrome is limited. Fourteen patients with type A Duane's retraction syndrome, aged 6 to 22 years, were assessed prospectively and their sensory findings and the nature of their sensory symptoms detailed. All 14 patients had corrected monocular Snellen acuities of 6/9 or better. Six patients were asymptomatic and 5 of these had dense suppression on lateral versions, were free of diplopia and had variable stereopsis. The 5 bilateral cases were among the asymptomatic group. The remaining 8 patients had weak or absent suppression on lateral versions, variable horizontal diplopia and relatively normal stereopsis. Six were aware of diplopia but were never bothered by it and two spontaneously complained of symptoms related to abnormal binocularity (diplopia in one and asthenopia at near in both). It was not [corrected] possible to differentiate the 2 symptomatic cases from the former 6 on the basis of their sensory findings. Patients with type A Duane's retraction syndrome spontaneously complained of symptoms related to abnormal binocularity. The patients least likely to suffer sensory symptoms were bilateral cases or patients with dense suppression on lateral versions, irrespective of their stereoacuity levels.

Duane’s retraction syndrome: its sensory features

“…, 1974; Isenberg and Urist, 1977; O’Malley et al. , 1982; Orton and Burke, 1995; Sloper and Collins, 1999). Our study was designed to investigate the binocular status of DRS patients, to determine whether or not a relationship exists between the sensory and clinical findings of the syndrome and to assess the associated ocular anomalies occurring with DRS.…”

“…Much has been written about the aetiology, clinical features, management and other aspects of the syndrome; however, only a few studies have emphasized the sensory features of this motility disorder (MacDonald et al, 1974;Isenberg and Urist, 1977;OÕMalley et al, 1982;Orton and Burke, 1995;Sloper and Collins, 1999). Our study was designed to investigate the binocular status of DRS patients, to determine whether or not a relationship exists between the sensory and clinical findings of the syndrome and to assess the associated ocular anomalies occurring with DRS.…”

Duane's retraction syndrome as a cause of diplopia in adults

“…Although patients with DRS may or may not be aware of diplopia [4], DRS has been rarely reported as a cause of diplopia in adulthood. Here, we describe two patients who were originally misdiagnosed as having Miller-Fisher syndrome and sixth nerve palsy, respectively.…”

“…Duane’s retraction syndrome (DRS) is a congenital eye movement disorder characterized by a failure of the abducens nerve to develop normally, resulting in congenital abduction deficit accompanied by globe retraction on attempted adduction, and by upshoots or downshoots of the affected eye on adduction [1–6]. Type 1 DRS is characterized by a marked limitation of abduction and nearly normal adduction, whereas type 2 is characterized by a marked limitation of adduction and nearly normal abduction and type 3 by marked limitations of both abduction and adduction.…”