Snell’s Law explains light refraction at material boundaries, a principle crucial to fiber optics, lens design, and advanced ...

Contact lens fitting may be adversely influenced by dry eyes, a common side effect of refractive surgery. Appropriate management of tear deficiency is of paramount importance. Corneal topography ...

If an ectatic disorder is suspected, we recommend that LASIK not be performed. Refractive lens surgery is gaining popularity in high myopic, hyperopic, and presbyopic patients. However ...

The Brightin Star 50mm F/1.4 Autofocus lens is available on Amazon for $239 for Fuji X and Sony E mounts. The Nikon Z mount is available from the company website for $299.