One of the oldest problems in optics has been solved. Rafael Gonzalez from Mexico's Tecnologico de Monterrey has come up with an almost comically dense equation that can be used to almost completely ...
Sapphire crystal (Al2O3) is a sought-after substrate for a range of high-precision applications; for example, for aerospace and aeronautical vehicles and high-powered laser applications, such as Er: ...
Thirty patients were randomised to receive one of six lens implants including three aspheric lenses and their spherical counterparts. Pre and postoperative testing was carried out including visual ...
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