Strabismus A-V Pattern

Abstract

Abstrak
Strabismus A-V pattern merupakan bagian dari bentuk strabismus horizontal inkomitan yang menggambarkan adanya perbedaan signifikan pada deviasi horizontal antara upgaze dan downgaze dari posisi midline.Terdapat berbagai teori yang menjelaskan etiologi strabismus AV pattern, yaitu disfungsi otot obliq, overaksi dan underaksi otot rektus horizontal, kelemahan otot rektus vertikal, dan sagitalisasi otot obliq. Terapi bedah diperuntukkan bagi A-V pattern yang signifikan secara klinis, atau terdapat head posture chin up dan chin down yang signifikan untuk mendapatkan fusi. Terdapat berbagai pilihan terapi strabismus A-V pattern yaitu pelemahan otot obliq, transposisi otot rektus horizontal atau rektus vertikal.
Kata kunci: A-V pattern, strabismus, otot obliq, tenektomi, transposisi

Abstract
A-V pattern strabismus was a part of horizontal form of incomitant strabismus which described a significantly different in horizontal deviation between upgaze and downgaze from midline position. There were several theories which explained the etiology of A-V pattern strabismus include oblique muscles dysfunction, Ooveraction and underaction of horizontal rectus muscles, weakness of vertical rectus muscles, dan oblique muscles sagitalizaton. Surgical treatment was indicated for clinically significant A-V pattern, or if there were significantly chin up and chin down of head posture to obtain fusion. There were several surgical procedure include oblique muscles weakening, horizontal rectus or vertical rectus muscles transpotition.
Keywords: A-V pattern, strabismus, oblique muscle, tenectomy, transpotition