The Refraction of the Eye; Including a Complete Treatise On Ophthalmometry; a Clinical Text-Book for Students And Practitioners
The Refraction of the Eye; Including a Complete Treatise On Ophthalmometry; a Clinical Text-Book for Students And Practitioners
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In our eReader you can find the full English version of the book. Read The Refraction of the Eye; Including a Complete Treatise On Ophthalmometry; a Clinical Text-Book for Students And Practitioners Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Refraction of the Eye; Including a Complete Treatise On Ophthalmometry; a Clinical Text-Book for Students And Practitioners
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Binocular single vision is absent. There is no lesion in the fundus of either eye. This is the only case of the kind that has come under my observa- tion.
Digitized by VjOOQIC %ifj^ Fig. 101. — Strabometer of Laurence.
distant point, and noting the number of millimeters distance the center of the cornea is from the center of the instrument, we at once ascertain the amount of the deviation in millimeters.
As each millimeter of deviation represents roughly an angle of 5°, we can reduce the linear... deviation to an equivalent expressed in degrees, by simply multiplying the num- ber of millimeters of deviation by five ; for example, say the linear deviation was three millimeters, this reduced to degrees would be 15°, and so on.^ (2) The extent of deviation or squint- ing of an eye may be measured with the perimeter. Place the patient in front of the instrument, with the deviating eye in line with the center of the arc, just as if to take the field of vision. Leave both €yes open, and have the good one directed to a distant object (20 feet) directly i
What to read after The Refraction of the Eye; Including a Complete Treatise On Ophthalmometry; a Clinical Text-Book for Students And Practitioners?
You can find similar books in the "Read Also" column, or choose other free books by Davis, Achilles Edward, 1866- to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Binocular single vision is absent. There is no lesion in the fundus of either eye. This is the only case of the kind that has come under my observa- tion.
Digitized by VjOOQIC %ifj^ Fig. 101. — Strabometer of Laurence.
distant point, and noting the number of millimeters distance the center of the cornea is from the center of the instrument, we at once ascertain the amount of the deviation in millimeters.
As each millimeter of deviation represents roughly an angle of 5°, we can reduce the linear... deviation to an equivalent expressed in degrees, by simply multiplying the num- ber of millimeters of deviation by five ; for example, say the linear deviation was three millimeters, this reduced to degrees would be 15°, and so on.^ (2) The extent of deviation or squint- ing of an eye may be measured with the perimeter. Place the patient in front of the instrument, with the deviating eye in line with the center of the arc, just as if to take the field of vision. Leave both €yes open, and have the good one directed to a distant object (20 feet) directly i
What to read after The Refraction of the Eye; Including a Complete Treatise On Ophthalmometry; a Clinical Text-Book for Students And Practitioners?
You can find similar books in the "Read Also" column, or choose other free books by Davis, Achilles Edward, 1866- to read onlineMoreLess
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