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Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base". The base is the thickest part of the lens and is opposite from the apex. Light will be bent towards the base and the image will be shifted towards the apex.
Glossary of geography terms (N–Z) lists terms beginning with the letters N through Z. Related terms may be found in Glossary of geology , Glossary of agriculture , Glossary of environmental science , and Glossary of astronomy .
This page, Glossary of geography terms (N–Z), lists terms beginning with the letters N through Z. Related terms may be found in Glossary of geology , Glossary of agriculture , Glossary of environmental science , and Glossary of astronomy .
The Dictionary of Greek and Roman Biography and Mythology is a biographical dictionary of classical antiquity, edited by William Smith and originally published in London by Taylor, Walton (and Maberly) and John Murray from 1844 to 1849 in three volumes of more than 3,700 pages.
This glossary of geology is a list of definitions of terms and concepts relevant to geology, its sub-disciplines, and related fields. For other terms related to the Earth sciences, see Glossary of geography terms
The motor system acts to point both eyes at the target of interest; any offset is detected visually (and the motor system corrects it). Heterophoria only occurs during dissociation of the left eye and right eye, when fusion of the eyes is absent.
Definition. In English, geodesy refers to the science of measuring and representing geospatial information, while geomatics encompasses practical applications of geodesy on local and regional scales, including surveying.
The concept of imagined geographies (or imaginative geographies) originated from Edward Said, particularly his work on critique on Orientalism. Imagined geographies refers to the perception of a space created through certain imagery, texts, and/or discourses.
Treatment options for esotropia include glasses to correct refractive errors (see accommodative esotropia below), the use of prisms, orthoptic exercises, or eye muscle surgery. The term is from Greek eso meaning "inward" and trope meaning "a turning".
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.