The Refraction and Accommodation of the Eye and Their AnomaliesPentland, 1886 - 600 pages |
From inside the book
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Page 3
... horizontal plane , as appears to be the case in the water ; they are not merely circles . They are propagated in every plane and in every direction , and thus form around the luminous point , as a centre , larger and larger spheres ...
... horizontal plane , as appears to be the case in the water ; they are not merely circles . They are propagated in every plane and in every direction , and thus form around the luminous point , as a centre , larger and larger spheres ...
Page 11
... horizontal , four divisions , BI , to the right in our examples , and three divisions of equal value , BF , toward the left . From the extremity of this line , to the right , erect a vertical line until it intersects the ray at D ; at ...
... horizontal , four divisions , BI , to the right in our examples , and three divisions of equal value , BF , toward the left . From the extremity of this line , to the right , erect a vertical line until it intersects the ray at D ; at ...
Page 111
... horizontal axes , or any other two axes which are perpendicular to each other , are shorter , and may differ 1 Hirschberg , Centralblatt f . med . Wissensch . , No. 13 , 1874 . quite considerably from each other . The summit of the ...
... horizontal axes , or any other two axes which are perpendicular to each other , are shorter , and may differ 1 Hirschberg , Centralblatt f . med . Wissensch . , No. 13 , 1874 . quite considerably from each other . The summit of the ...
Page 118
... horizontal plane . The divergence of the two lines which form this angle is generally much less in the vertical plane . The angle formed by the line of fixation with the axis of the eye is called the angle y . This is the angle O M A in ...
... horizontal plane . The divergence of the two lines which form this angle is generally much less in the vertical plane . The angle formed by the line of fixation with the axis of the eye is called the angle y . This is the angle O M A in ...
Page 175
... horizontally at the top of the diagram , corre- sponding to the ordinates , indicate the age ; the figures at the left , opposite the abscisses , stand for numbers of dioptries . The curve rr corresponds to the refraction of the eye ...
... horizontally at the top of the diagram , corre- sponding to the ordinates , indicate the age ; the figures at the left , opposite the abscisses , stand for numbers of dioptries . The curve rr corresponds to the refraction of the eye ...
Other editions - View all
The Refraction and Accommodation of the Eye and Their Anomalies Edmond Landolt No preview available - 2023 |
The Refraction and Accommodation of the Eye and Their Anomalies Edmond Landolt No preview available - 2018 |
Common terms and phrases
acuteness of vision adapted ametropia amplitude of accommodation angle anisometropia asthenopia astigmatism atropine axis becomes binocular vision centimetres centre choroid ciliary muscle concave glass convex glass convex lens cornea correcting-glass correction corresponding crystalline lens determine diminished dioptric apparatus dioptric system dioptries diplopia direction distant vision divergent Donders dynamic refraction effort of accommodation emmetropia emmetropic eye equal focal distance formula fundus Hence horizontal hyperopia hyperopic hyperopic eye increase index of refraction infinity inverted Landolt latter lenses less lines of fixation luminous point luminous rays maximum medium metre metre-angles millimetres mydriatic myopes myopia myopic eye nearer nodal point object observed obtain Ophth ophthalmoscope optical optometer patient placed posterior principal focus principal meridians principal point prism produced punctum proximum punctum remotum pupil range of accommodation refractive power refractive surface retina retinal images second principal situated spasm spherical static refraction strabismus tion vertical visual acuteness
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