Good point on contact lenses. On 1., leaving space for glasses limits the FOV so I'd assume Apple is not leaving that gap (which would also justify the product

Good point on contact lenses. On 1., leaving space for glasses limits the FOV so I'd assume Apple is not leaving that gap (which would also justify the production of prescription lenses from the start, for a product that isn't even shipping yet) On 2. I don't have the stats, but this study was interesting: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8569398/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8569398/ > The distributions with significant changes included males that were significantly more myopic and astigmatic, while females were more hyperopic across the age groups. Furthermore, myopia decreased, while hyperopia, astigmatism and anisometropia increased with increasing age. So, - parents and children have a high probability of having a different correction - A man/woman couple has a high probability of having a different correction