Optical terminology glossary
WebA range of optical spectrum allocated based on optical amplifiers. Six bands are specified: O (original), E (enhanced), S (short), C (conventional), L (long), and U (ultra). These cover the optical spectrum from 1260 nm to 1675 nm. Bandwidth The difference between the highest and the lowest frequencies of a transmission channel or path. WebApr 3, 2024 · retinal pigment epithelium (RPE) A layer of pigmented cells found between the light-sensitive, inner back lining of the eye ( retina) and the choroid, which contains blood vessels that supply nutrients and oxygen. retinal tear A tear or split in the retina typically caused by a vitreous detachment. Symptoms include floaters and light flashes.
Optical terminology glossary
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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 ... WebHomeVision CareOptical Terms and Definitions 20-20 Vision- Normal visual acuity. Upper number is the standard distance (20 feet) between an eye being tested and the eye chart; lower number indicates that a tested eye can see the same small standard-sized letters or symbols as a normal eye at 20 feet.
Webeyes, 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 … WebPlastic optical fiber (POF): An optical fiber made of plastic. Plastic-clad silica (PCS) fiber: A fiber made with a glass core and plastic cladding. POF: plastic optical fiber, optical fiber made from polymer materials.
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 ... WebApr 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.
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 …
Weboptical coherence tomog-raphy Tests OD right eye Anatomy OHT ocular hypertension Glaucoma: Diagnoses/ findings OS left eye Anatomy OU both eyes Anatomy PAS … dol jatra 2022 imageWebEyeglass 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. doljatra 2023WebOptics and Ophthalmology Glossary Here you will find definitions for relevant terms used in optics and ophthalmology: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z … dol jatra 2023WebFeb 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 ... putin zaatakuje polskęWebGlossary of Video and Vision Terminology; Agent: Part of a memory-mapped interface, which receives transactions from a host interface. Auxiliary control packets: A term for any Intel FPGA streaming video protocol control packet with ID>=2. Optionally available to use for a variety of purposes, such as timestamping, register updates, IP ... putin zabijaWeb118 GLOSSARY OF OPTICAL TERMS acutance. Edge sharpness and high edge contrast in an image. afocal. Optical system whose image point of a distant object is at infinity . … doljatra 2024WebThis glossary of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields.Astronomy is concerned with the study of celestial objects and phenomena that originate outside the atmosphere of Earth.The field of astronomy features an extensive vocabulary and a significant amount of … putin zabic