Accommodative Spasm Diagnosis and Treatment

Diagnostic Evaluation

• The American Academy of Ophthalmology recommends performing cycloplegic refraction to definitively diagnose and quantify the accommodative spasm, using agents such as cyclopentolate or atropine to achieve complete cycloplegia, which paralyzes the ciliary muscle and reveals the true refractive error beneath the spasm 1, 2
• Cyclopentolate provides greater cycloplegia than tropicamide in adults, allowing more accurate refraction, though with longer duration of effect 1
• The difference between manifest (non-cycloplegic) and cycloplegic refraction will quantify the degree of accommodative spasm, with a significant difference requiring a post-cycloplegic refraction on a subsequent day after full accommodation returns 1, 2
• Dynamic retinoscopy prior to cycloplegia can assess accommodation and may show the accommodative spasm when the right eye is tested alone 2, 3

Treatment Approach

• The American Academy of Ophthalmology suggests that once cycloplegia reveals the true refractive error, appropriate spectacle correction for any underlying hyperopia discovered should be prescribed, which can reduce accommodative demand and prevent spasm recurrence 1, 4
• Correcting even small amounts of hyperopia can reduce accommodative demand and prevent spasm recurrence, as evidenced by the case report documenting this phenomenon 3