Abstract

Aim- We define a strabismus case to be rare when the extraocular muscles appear to be absent. we describe 3 cases of absent or missing muscles causing strabismus , how we tackled and managed them .
Methods – Case1 had absent inferior rectus due to infected scleral buckle , was managed by inferior oblique transposition.
Case 2 had congenital absence of lateral rectus muscle managed by vertical rectus transposition
Case 3 – a case of slipped iatrogenic medial rectus muscle was managed by inferior rectus transposition.
Results- All cases had primary deviation within 10 PD. No diplopia and anterior segment was noted.
Conclusion-In case of squint secondary to missing muscles , operative imaging , forced duction test and intraoperative exploration helps in diagnosis.
Surgery though challenging , can be managed with transposition.