Final answer:
The claim that half of patients prefer personalized lenses over conventional lenses isn't directly supported by the provided information. The study indicates control over corneal thickness can aid in achieving normal distant vision for many patients, and explains the use of different types of lenses for various eye conditions, not patient preferences.
Step-by-step explanation:
The question about patients preferring personalized lenses over conventional lenses appears to be based on a misunderstanding of the provided study details. The information given does not specifically state this preference; rather, it highlights that the thickness control of the cornea can help produce normal distant vision in more than 90% of patients. Patients with certain vision problems, such as myopia or hyperopia, might need converging or diverging lenses to correct their vision. For instance, diverging lenses help spread the rays so they focus on the retina, thus assisting with myopia, where images focus before the retina. Conversely, converging lenses are useful in hyperopia where images are focused behind the retina.
In cases of cataracts, replacing the clouded lens with an intraocular lens can grant perfect distant vision, but it doesn't guarantee that the person will be able to read without glasses - that depends on various factors including the power of the intraocular lens compared to the removed lens. Eyeglass prescriptions post-cataract surgery, like a prescription of 16 D lenses, compensate for the removal of the natural lens.