Wavefront analysis in eyes with accommodative spasm

PURPOSE: To investigate changes of spherical aberration in eyes with accommodative spasm. DESIGN: Case reports. METHODS: Four eyes of two patients with accommodative spasm were studied. Ocular spherical aberration was measured with a Hartmann-Shack wavefront aberrometer for the central 4-mm zone. RESULTS: The root mean square values of spherical aberration were negative (-0.086 +/- 0.026 mum root mean square). However, when the spasm of accommodation was cured or treated with a cycloplegic agent, the value shifted toward positivity (0.025 +/- 0.004 mum root mean square). CONCLUSIONS: Excessive accommodative tone is manifested objectively by negative spherical aberration in eyes with accommodative spasm. (C) 2003 by Elsevier Inc. All rights reserved.