Refraction And How to Refract Including Sections On Optics Retinoscopy the F
Refraction And How to Refract Including Sections On Optics Retinoscopy the F
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In our eReader you can find the full English version of the book. Read Refraction And How to Refract Including Sections On Optics Retinoscopy the F 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 Refraction And How to Refract Including Sections On Optics Retinoscopy the F
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The glasses selected by the static refraction may be prescribed for distance, but a second pair, I, 2, or 3 diopters weaker, must be ordered for the reading, writing, or working distance, that the accommodative effort may in part be kept in abeyance. Class I, if not carefully watched, may pass into class 2 and class 2 may pass into class 3.
CLASS 3. These cases require unusually strong lenses, and it is to these especially that the term " sick, " or "stretched" eye particularly belongs. The oph...thalmo- scope may show vitreous opacities, areas of retinochoroid- itis, macular choroiditis, a broad myopic conus, and even posterior staphyloma. The eyes are prominent, occupying much of the orbital space. Eyes of such length are limited in their power of comfortable rotation, and hence it is com- mon for one eye to diverge, the patient stating that lie uses only one eye for near vision. The diverging eye is usually more or less amblyopic, due to want of use or pathologic changes, or to both. Such eyes have lost almost or quite all the power of accommodation.
What to read after Refraction And How to Refract Including Sections On Optics Retinoscopy the F?
You can find similar books in the "Read Also" column, or choose other free books by James Thorington to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The glasses selected by the static refraction may be prescribed for distance, but a second pair, I, 2, or 3 diopters weaker, must be ordered for the reading, writing, or working distance, that the accommodative effort may in part be kept in abeyance. Class I, if not carefully watched, may pass into class 2 and class 2 may pass into class 3.
CLASS 3. These cases require unusually strong lenses, and it is to these especially that the term " sick, " or "stretched" eye particularly belongs. The oph...thalmo- scope may show vitreous opacities, areas of retinochoroid- itis, macular choroiditis, a broad myopic conus, and even posterior staphyloma. The eyes are prominent, occupying much of the orbital space. Eyes of such length are limited in their power of comfortable rotation, and hence it is com- mon for one eye to diverge, the patient stating that lie uses only one eye for near vision. The diverging eye is usually more or less amblyopic, due to want of use or pathologic changes, or to both. Such eyes have lost almost or quite all the power of accommodation.
What to read after Refraction And How to Refract Including Sections On Optics Retinoscopy the F?
You can find similar books in the "Read Also" column, or choose other free books by James Thorington to read onlineMoreLess
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