The NEET UG 2026 (National Eligibility cum Entrance Test – Undergraduate) exam is expected to be held on Sunday, 3 May 2026 ...

When it comes to gemstones, rarity often directly affects value. And few stones can rival the near-mythical status of ...

Abstract: The ambition of achieving road traffic without serious injuries, since 1997 referred to as “Vision Zero,” has influenced the development of new car generations during the last decades. Since ...

Refraction is the change in the direction of light due to a change in its speed as it enters a different medium. While the speed of light is constant in a vacuum, it decreases in denser materials, ...

1 Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Science, Department of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, China 2 Department ...

Please provide your email address to receive an email when new articles are posted on . Cyclopentolate and tropicamide had comparable refractive error values across ...

Abstract: A procedure for computation of the nonlinear refractive index of a gaseous medium from the intensity dependence of the ionization rate is reported. The ionization rate is calculated from ...

Light Refraction, it might sound like a big scary term, but today’s experiment is basically about rainbows! Who doesn’t love a rainbow experiment? These simple experiments are perfect for your ...

Internal conical refraction is a striking optical phenomenon which arises when a beam of light is incident along one of the optic axes of a slab of transparent biaxial crystal. The beam propagates as ...

Purpose The purpose of this study was to develop a concept for predicting the effects of both discrete intraocular lens (IOL) power steps (PS) and power labelling tolerances (LT) on the uncertainty of ...