The registrations for NEET 2026 have commenced. In order to appear for the MBBS entrance test, the candidates need to be well aware of the syllabus for the test. The National ...

From vision defects to rainbows and sky colour, here’s a quick-scoring, concept-based summary aligned with the CBSE dual exam system.

Stephenson, MD, FACS, shares insights on evolving LAL technology and best practices for managing the ocular surface before ...

Making a perfect lens that produces flawless images has been a dream of lens makers for centuries. In 1873, Ernst Abbe discovered a fundamental 'diffraction limit' in optics: whenever an object is ...

The manifest refraction-biometry formula outperforms the Barrett Rx formula in achieving target refraction during intraocular lens exchange.

Our four panelists reviewed dozens of glasses, putting them through a series of quality, style and comfort tests. Our panel testers evaluated each contender’s online buying process. We scanned for a ...

Prism light glares or lens flare spectrum of gem glass refraction and sun light shiny dispersion Rainbow prism flare lens realistic effect at violet background.... Rainbow prism flare lens realistic ...

Orthokeratology may provide greater slowing of axial elongation than defocus incorporated multiple segments lenses.

Abstract: A phased array antenna with enhanced scanning angle range is proposed in this paper. To enhance the scanning angle range of the 8-element phased array antenna, a concave-convex lens is ...

1 Division of Pediatric Ophthalmology, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia 2 Division of Radiology, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia Correspondence to: A ...