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Duane syndrome is a congenital rare type of strabismus most commonly characterized by the inability of the eye to move outwards. The syndrome was first described by ophthalmologists Jakob Stilling (1887) and Siegmund Türk (1896), and subsequently named after Alexander Duane, who discussed the disorder in more detail in 1905. Other names for this condition include: Duane's retraction syndrome, eye retraction syndrome, retraction syndrome, congenital retraction syndrome and Stilling-Türk-Duane Syndrome. ==Clinical presentation== The characteristic features of the syndrome are: *Limitation of abduction (outward movement) of the affected eye. *Less marked limitation of adduction (inward movement) of the same eye. *Retraction of the eyeball into the socket on adduction, with associated narrowing of the palpebral fissure (eye closing). *Widening of the palpebral fissure on attempted abduction. (N. B. Mein and Trimble point out that this is "probably of no significance" as the phenomenon also occurs in other conditions in which abduction is limited.) *Poor convergence. *A head turn to the side of the affected eye to compensate for the movement limitations of the eye(s) and to maintain binocular vision. While usually isolated to the eye abnormalities, Duane syndrome can be associated with other problems including cervical spine abnormalities Klippel-Feil syndrome, Goldenhar syndrome, heterochromia, and congenital deafness.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Duane syndrome」の詳細全文を読む スポンサード リンク
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