- reversed astigmatism
- обратный астигматизм
English-Russian dictionary of medicine. Г.Ю. Бельман, А.Е. Бойков. 2015.
English-Russian dictionary of medicine. Г.Ю. Бельман, А.Е. Бойков. 2015.
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra … Wikipedia
Eyepiece — For the device for looking through a camera, see viewfinder. A collection of different types of eyepieces. An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is… … Wikipedia
photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… … Universalium
Bates method — Alternative medicine / fringe therapies William Bates and his assistant. Claims The need for eyeglasses can be reversed by relaxation. Related fields Ophthalmo … Wikipedia
Large format lens — Large format lenses are photographic optics that provide an image circle large enough to cover large format film or plates. Large format lenses are typically used in large format cameras and view cameras.Photographic optics generally project a… … Wikipedia
Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… … Wikipedia
Xerophthalmia — Classification and external resources ICD 10 E50.6 E50.7 ICD 9 … Wikipedia
Amblyopia — Impaired vision in an eye due to a disorder of the brain cells that control the vision in that eye, not usually due to a problem with the eye itself. Amblyopia is caused by lack of use of an eye when the brain favors the other eye. The eye is… … Medical dictionary
Young-Helmholtz theory — Young Helm·holtz theory yəŋ helm .hōlts n a theory in color vision: the eye has three separate elements each of which is stimulated by a different primary color Young Thomas (1773 1829) British physician, physicist, and Egyptologist. Young is… … Medical dictionary