Spherical-equivalent contacts may shift binocular function

Compared with spectacles, the lenses produced modest changes in convergence and accommodation that remained within clinical ranges.

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Switching from spectacles to spherical-equivalent soft contact lenses may alter binocular vision measures in patients with low myopic astigmatism.
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The study involved 36 patients aged 15 to 35 years, all with specific ranges of myopia and astigmatism.
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Changes in accommodative lag, near point of convergence, and positive relative accommodation were statistically significant but modest.
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Most binocular vision measures did not show statistically significant changes between spectacles and contact lenses.
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The study suggests further research is needed to compare toric and spherical soft contact lenses regarding residual astigmatism.

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