Slit Lamp Biomicroscope and different illumination techniques

WHAT ARE BLUE RAY CUT LENSES?

WHAT ARE BLUE CUT LENSES?  Blue Cut lens was designed to protect against the negative effects of the “blue light”. The harmful blue light emitted from the computer and mobile screens. All digital devices which we used such as laptops, smartphones, tablets etc emit blue lights. Prolonged exposure of human eyes to blue light is […]

Eye Twitching ” Myokinesia”

Eye twitch is the repetitive, involuntary spasm of eyelid muscles. It comes on suddenly and can last for a second,  minute, hours, days or even longer. While it may feel as if everyone can see the twitch, most twitches are slight enough that they can’t be seen by someone simply looking at your face. Eye […]

What is Ultraviolet (UV) rays, and its effect on human eyes

Ultraviolet (UV) is an electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays. UV radiation constitutes about 10% of the total light output of the Sun, and is thus present in sunlight. It is also produced by electric arcs and specialized lights, such […]