The VIS Opti-K device and procedure were used to provide vision improvement to patients with presbyopia.
The VIS Opti-K device was used to irradiate the cornea with light that changed corneal shape.
Study Type
OBSERVATIONAL
Enrollment
135
Uncorrected distance and near visual acuities
Uncorrected distance and near visual acuities are measured using ETDRS or similar charts.
Time frame: Up to 24 months post-treatment
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