Dry eye is very common, especially post corneal refractive surgery, and should be treated preoperatively with attention paid ...

Effective light extraction from optically active solid-state spin centers inside high-index semiconductor host crystals is an important factor in integrating these pseudo-atomic centers in wider ...

PDF for physics from the official Punjab Board website. Access chapter-wise details for physics with the link to download the ...

In lens refractive surgery, corneal topography plays a critical role in IOL power calculation in eyes with prior keratorefractive surgery, and it will be required for designing customized ...

An off-axis flat-concave dual-mirror (FCDM) configuration for an ultrashort focal length projection lens based on the digital light processor (DLP) upright projection-type projector is proposed in ...

Slit-lamp evaluation is of great importance in all cases of contact lens fitting after refractive surgery. The practitioner should proceed to the fitting bearing in mind that classic findings are ...

A deep analysis of bi- and plano-concave lens made of stacked subwavelength hole arrays in terms of focus and angular power distribution is presented. The key difference between these left-handed ...

Dr. Greg Moloney, MBBS, BSC MED, MMED, FRCSC, Ophthalmologist, talks about vision correction by RLE (Refractive Lens Exchange). Video of Bernie Sanders reacting to Trump's Iran strikes live goes ...

Discover how wave refraction works, why it happens and how it affects surfing in this easy-to-understand guide.

What Is Concave and Convex Refraction? Concave and convex are the different terms of refraction and describe two different ways waves can refract.