Optical terminology glossary
WebGlossary of Terms Profession of Medicine. The art and science of maintaining health; recognizing, understanding, preventing, diagnosing, alleviating, managing, and treating disease, injury, disorder, and deformity in all their relations that affect the human body in general, including surgery. ... Vision Care. A term commonly used to describe ... WebDefined by ITU-T G 692 as “extended” for wavelengths between 1360 and 1460 nm This band includes the high OH peak in single-mode fibers G 652D fiber is designed for transmission …
Optical terminology glossary
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WebApr 3, 2024 · An emmetropic eye has no nearsightedness, farsightedness or astigmatism. endophthalmitis Inflammation of the interior of the eye, typically caused by an infection from eye surgery or trauma. Endophthalmitis is an ocular emergency. Symptoms include floaters, light sensitivity, eye pain or discomfort, a red or pink eye and vision loss. WebCommon and not-so-common eye and vision terms. We want to make sure you’re completely comfortable when you visit the eye doctor for your eye exam*. This …
WebFeb 27, 2024 · If an eyeglass prescription includes cylinder power, it also needs to include an axis value, which follows the cylinder power. The axis is defined with a number from 1 to 180. The number 90 corresponds to the vertical meridian of the eye. The number 180 corresponds to the horizontal meridian of the eye. The axis is the lens meridian that is 90 ... WebBy understanding the glossary terms below, you can better match your choice to your shooting situation. Coatings The optical elements of the riflescope are coated to reduce internal light loss and glare, which in turn ensures even light transmission, resulting in greater image sharpness, brightness, color fidelity and contrast.
WebAmblyopia (pronounced am blee OPE ee ah): A condition also known as lazy eye. This loss or lack of normal development in central vision during infancy and early childhood is a leading cause of decreased vision among children. Anti-VEGF medications: Elevated vascular endothelial growth factor (VEGF), a soluble factor that can be produced in eyes ... WebEyeglass Prescription Glossary / Abbreviations Oculus Dexter (OD): Latin for right eye. Oculus Sinister (OS): Latin for left eye. Oculus Uterque (OU): Latin for both eyes. Sphere or Power (SPH or PWR): This is the main strength of your eyeglass prescription, and is written in 0.25 increments.
WebBasic Optical Fiber Concepts Attenuation Attenuation is the reduction in signal power between two points in the system. It is defined as the ratio of the power at those two points (typically for optical fiber it is the input and output) and is expressed as the logarithm of that ratio in decibels (dB).
Web“Homerun” and “pigtail.” You know the meaning of these two terms, right? Step into the world of telecommunications and suddenly their meanings change entirely. Make sure you are familiar with all the terms you need to know to be fluent in … stc offers iphoneWebGlossary as taen from Understaning Lens Srfacing,” written y Cliaor W Brooks O.D. an publishe y Butterworth-Heinemann. Glossary of Optical Terminology www.fe˜ind.com … stc of michiganWebApr 3, 2024 · computer vision syndrome - Collection of problems, mostly eye- and vision-related, associated with computer use. Symptoms include eye strain, dry eyes, blurred vision, red or pink eyes, burning, light sensitivity, headaches and pain in the shoulders, neck and back. cone - A photosensitive receptor in the retina that helps you to see color. stc of solid core wood doorWebA blister or bubble on the surface of the eye, made with a flap of tissue during a trabeculectomy, that will fill with aqueous fluid in order to facilitate the lowering of intraocular pressure. The fluid that collects in the bleb is slowly reabsorbed by the eye. Suggested resource: “Trabeculectomy (Filtration Surgery) for Glaucoma” on WebMD. stc of sheetrockWebApr 3, 2024 · A-B C-D E-H I-L M-O P Q-S T-Z. reading glasses Also called readers. Glasses to help with close work, particularly for people who are presbyopic. More about … stc offers ksaWebeyes, blurred vision, headaches, double vision, distorted color vision, and neck and back aches. Concave Lens– A spectacle lens which is thicker at the edges than in the center. A … stc ofgemWebFor optical fiber, in trade and commerce, it is common to normalize the attenuation by the fiber length. This attenuation coefficient is expressed in dB/unit length, typically … stc office 365