Abstract: A Rotman lens connected with eight series fed patch arrays is designed at 28 GHz. The input port 5 is not matched properly. A matching circuit based on Gaussian curve is designed and ...

They’re also much faster at reading our image data and, because they share the same basic structure as computer ...

Compared with single vision lenses, DISC lenses significantly slow myopia progression and axial elongation in children, a study shows.

It's a quiet autumn evening. You're enjoying some TV, when an unscripted movement catches your eye. A large house spider ...

Background: The lens thickness-to-anterior chamber depth (LT/ACD) ratio remains underexplored, despite its significance in optimizing cataract surgical outcomes and stratifying the risk of potential ...

Keratometry measures the radius of curvature of the cornea, specifically the central zone. This measurement helps determine the cornea’s refractive power and identify any irregularities, such as ...