MODERN REFRACTOMETERS
With the rapid development in electronics and micro computers a number of innovative methods & instrument for automated clinical refraction have appeared since 1960. Refractometer is used to determine the…
With the rapid development in electronics and micro computers a number of innovative methods & instrument for automated clinical refraction have appeared since 1960. Refractometer is used to determine the…
Physiological accommodation: The accommodation reflex is the visual response for focusing on near objects. It also has the name of accommodation -convergence reflex or the near reflex. It is a…
Asthenopia, though annoying, isn’t serious and doesn’t cause permanent vision or eye problems. Limiting screen time, taking breaks, and making a few adjustments to your surroundings and daily habits is…
Asthenopia is a term used to describe a sense of strain and weakness or ocular fatigue set up by the use of the eyes (a = not, sthenos = strengh,…
The term insufficiency of accommodation is used, when the accommodative power is significantly less than the normal physiological limits for the patient’s age. Therefore, it should not be confused with…
Hey have you ever notice that most of the middle age persons always put a spectacle before going to start any near work like reding, writing etc. If you are…
WHAT IS RETINOSCOPY RETINOSOPY also called as skiascopy or shadow test is an objective method of finding out the error of refraction by the method of neutralization. PRINCIPAL RETINOSCOPY is…
The value of tear flude of preserving a clear cornea has been understood sinces ages. The fact that the blinking action of lids was esentioal foe spreading the tears and…
Watering of the eye is an protective mechanism that kicks in when your eyes dry. Your dry eyes sends message to the brain the brain responds flooding the tears under…
Wolff was the first to describe the structure of the fluid covering the cornea and called it as precorneal film. He described that the tear fim consist of three layers,which…