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Synoptical :: Synoptic (a.) Alt. of Synoptica.

Optics :: Optics (n.) That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision..

Autoptical :: Autoptical (a.) Seen with one's own eyes; belonging to, or connected with, personal observation; as, autoptic testimony or experience..

Entoptic :: Entoptic (a.) Relating to objects situated within the eye; esp., relating to the perception of objects in one's own eye..

Strockle :: Stroboscope (n.) An optical toy similar to the phenakistoscope. See Phenakistoscope.

Subtile :: Subthalamic (a.) Situated under the optic thalamus.

Catoptron :: Catoptron (n.) A reflecting optical glass or instrument; a mirror.

Strabotomy :: Strabismus (n.) An affection of one or both eyes, in which the optic axes can not be directed to the same object, -- a defect due either to undue contraction or to undue relaxation of one or more of the muscles which move the eyeball; squinting; cross-eye..

Asterism :: Asterism (n.) An optical property of some crystals which exhibit a star-shaped by reflected light, as star sapphire, or by transmitted light, as some mica..

Amaurosis :: Amaurosis (n.) A loss or decay of sight, from loss of power in the optic nerve, without any perceptible external change in the eye; -- called also gutta serena, the drop serene of Milton..

Sciopticon :: Sciopticon (n.) A kind of magic lantern.

Synosteology :: Synoptist (n.) Any one of the authors of the three synoptic Gospels, which give a history of our Lord's life and ministry, in distinction from the writer of John's Gospel, which gives a fuller record of his teachings..

Enorthotrope :: Enorthotrope (n.) An optical toy; a card on which confused or imperfect figures are drawn, but which form to the eye regular figures when the card is rapidly revolved. See Thaumatrope..

Perspective :: Perspective (n.) Of or pertaining to the science of vision; optical.

Chromascope :: Chromascope (n.) An instrument for showing the optical effects of color.

Stop :: Stop (n.) The diaphragm used in optical instruments to cut off the marginal portions of a beam of light passing through lenses.

Synoptist :: Synoptic (n.) One of the first three Gospels of the New Testament. See Synoptist.

Retina :: Retina (n.) The delicate membrane by which the back part of the globe of the eye is lined, and in which the fibers of the optic nerve terminate. See Eye..

Telescope :: Telescope (n.) An optical instrument used in viewing distant objects, as the heavenly bodies..

Power :: Power (n.) The degree to which a lens, mirror, or any optical instrument, magnifies; in the telescope, and usually in the microscope, the number of times it multiplies, or augments, the apparent diameter of an object; sometimes, in microscopes, the number of times it multiplies the apparent surface..

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