What question did this study set out to answer?

The aim is to clarify the etiology, diagnostic criteria, and treatment options for divergence insufficiency.

March 21, 2026

Divergence Insufficiency

Key Points

The aim is to clarify the etiology, diagnostic criteria, and treatment options for divergence insufficiency.
Reviewed existing literature on divergence insufficiency.
Analyzed differences from similar conditions like divergence paralysis and sixth nerve palsy.
Discussed diagnostic challenges and therapeutic approaches.
Identified key clinical features that differentiate divergence insufficiency from serious conditions.
Emphasized the importance of accurate diagnosis for effective treatment.
Provided insights into managing patients with diplopia and eso deviation.

Abstract

ABSTRACT Although the entity of divergence insufficiency was described as early as 1886 by Duane, it has received relatively little attention in the literature. Patients presenting with a greater eso deviation at distance than at near, a cornitant deviation, and diplopia pose a challenging and critical diagnostic and therapeutic puzzle for the clinician. Divergence insufficiency, a benign condition, must be differentiated from divergence paralysis and sixth nerve palsy, two conditions that present with somewhat similar findings yet have underlying etiologies of a serious nature. This paper reviews the literature and clarifies the etiology, diagnosis, and treatment of divergence insufficiency and related conditions.

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