I picked a pair of $7 frames, blue-blocking lenses, and their mid-range coating, and adjusted my distance prescription by rounding up the NV-ADD to .0/.5 and adding half of that to the SPH value. With shipping, they came to $45, and arrived in a week.
They work great.
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Sometimes you have to double-click to enter text in the form (interaction between Isso and Bootstrap?). Tab is more reliable.