Different IOL calculators provided similar results in patients with a history of LASIK surgery, according to a study ...

FDA approvals in 2025 introduced novel therapies and devices across ophthalmic subspecialties, emphasizing sustained efficacy ...

A superlattice comprising alternating layers of negative-refractive-index photonic crystals and positive-refractive-index dielectric media has been shown to exhibit an effective refractive index of ...

High refractive index polymers (HRIPs) are essential for manufacturing modern optoelectronic devices, including displays and light sensors. However, high-performance HRIPs are expensive and ...

Please provide your email address to receive an email when new articles are posted on . Patients previously underwent LASIK, RK or PRK. The Tecnis Eyhance IOL showed positive visual and refractive ...

Refractive errors are common eye issues that can cause blurry or distorted vision. Treatment usually involves wearing glasses or contact lenses or getting procedures ...

A refractive disorder is an ocular condition caused by changes in the shape of the eye, which prevents light from being focused sharply on the retina, creating unclear images. The causes may range ...

A refraction test is usually given as part of a routine eye examination. It may also be called a vision test. This test tells your eye doctor exactly what prescription you need in your glasses or ...

A property of a material that changes the speed of light, computed as the ratio of the speed of light in a vacuum to the speed of light through the material. When light travels at an angle between two ...

The Brix scale, derived from the refractive index of a solution at 20 degrees Celsius (68 Fahrenheit), is widely known. Originally, it was established by determining the weight percentage of sucrose ...

A good candidate also is one who, despite expecting improved vision, will still be OK with the idea of having to wear glasses under certain situations, such as when driving at night.