I recently visited a professional Costco Optical department to have these frames fitted for my high-degree prescription. After evaluation, their opticians informed me that these specific frames are technically unsuitable for my needs:
• Half-Frame Pair: Costco confirmed this frame cannot securely support or hold lenses of my high prescription degree.
• Full-Frame Pair: Due to the frame's large depth, Costco determined that the final high-index lenses would be excessively heavy for functional daily use.