I’m glad that a good result was had, but none of these results are that surprising if you have experience in ophthalmic optics. The initial prescription and th

I’m glad that a good result was had, but none of these results are that surprising if you have experience in ophthalmic optics. The initial prescription and the final one are only a little different when you consider the change of acuity they can deliver (from a physics perspective). For a script like that, the frame choice, lens design and vertical placement of the optical centres (if the frame is a little deep) could all have a similar effect on acuity. It is also very common for there to be differences like he found between an auto-refraction and a subjective refraction. It’s possible that they are too focused in on the prescription itself and there are issues around the lens positioning/design that are involved here as well.