Abstract
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 μm 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 μm root mean square). Conclusions Excessive accommodative tone is manifested objectively by negative spherical aberration in eyes with accommodative spasm.
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