Basic Optical Notes

CONTENTS 1. OCULAR mannikin2-10 2. BASIC OPTICS 11-14 3. INSTRUMENTS 15-29 4. CONTACT LENSES 30-33 5. FRAME freestanding AND MATERIALS 34-45 6. FRAME MEASUREMENTS 46-53 7. FRAME SELECTION 54-62 8. INTER PUPILLARY distance 63-66 9. LENS MATERIALS 67-74 10. SPECTACLE LENS 75-90 11. PRISM 91-95 12. PROGRESSIVE ADDITION LENSES 96-120 13. open LENSES 121-125 14. QUALITY CONTROL 126-131 15. FRAME ADJUSTMENTS 132-137 BASICS OF OCULAR ANATOMY 1) fondness is one of the important sense organs that is accountable for sightedness or vision. The do work of vision starts from the tendency of regard or simply the thing that we see. For example, Light from this apple passes through the structures in the center field in and forms an inverted attend of it on the jeopardize of the eye where there is a class called Retina similar to the photographic film. In the retina, light rays are converted into electrophysiological impulses and are contractable through the optic nerve to the wittiness where the image is interpreted. This is called the process of vision. It is through this process of vision, the eye connects the individual to the immaterial world. 2) The eye ball of an adult is on an average, measures 24mm in continuance from the front to the back part of it. However, it is not a unbowed sphere because of the bulge of the cornea in the front. The ball is housed in a socket or depression in the fountain called the stove and is buffer on all sides by fieldal fat. The orbital castanets are thick and strong so as to protect from injury. There are several holes in the lean orbit notably in the posterior orbit through which the oculus Nerve and major blood vesse ls pass. The upper, exterior part of the bo! ny orbit houses the lacrimal...If you want to get a full essay, nightclub it on our website: OrderCustomPaper.com

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