Bilateral scleral dellen Following strabismus surgery : 2 years follow up

Abstract

Introduction: Dellen are small saucer-like excavations could happened at cornea and sclera. Scleral dellen result from local dehydration and thinning of the scleral tissues with exposure of the underlying uvea leading to their bluish color. This condition has been reported occured after a variety of ocular surgical procedures, including strabismus surgery, pterygium excision and cataract extraction. The incidence of scleral dellen has not yet known, but data regarding dellen cornea are estimated at 3.2-4.3% in general strabismus surgery.

Objective: The purpose of making this case report is to study scleral dellen as apost-operative extraocular muscle complication and its treatment.

Case Ilustration: Patient, male, 12 years old with intermittent exotropia has performed bilateral lateral rectus recess with adjustable suture. Post operative ocular alignment was orthophoria, but scleral dellen was found in both eyes post surgery. Rheumatoid factor examination and Anti Nuclear Antibody tests were performed to confirm the presence of collagen abnormalities and autoimmune diseases showing normal results. No deterioration until 2 years follow up. Patients were treat conservatively.