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  • 1995-1999
  • 1985-1989
  • 1980-1984  (2)
  • 1981  (2)
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Material
Years
  • 1995-1999
  • 1985-1989
  • 1980-1984  (2)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Structure of 1-phenylcyclohexanol (1981)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 37 (1981), S. 1874-1877 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740881007450
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Myopic astigmatism a substitute for accommodation in pseudophakia (1981)
    Springer
    Documenta ophthalmologica 52 (1981), S. 123-178 
    Details
    ISSN: 1573-2622
    Keywords: physiological optics ; astigmatism comparative ophthalmology ; astigmatism surgery ; IOL calculation ; calculator's program ; depth of focus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The power of an intraocular lens can be calculated before surgery to make the eye emmetropic or ametropic. The physiological mechanism of accommodation however, cannot be restored with an inelastic lens. An increased depth of focus in the implanted eye can be predicted through optical principles alone, if the postoperative ametropia of the implanted eye is a simple myopic astigmatism. This increased depth of focus without accommodation was tested in artificial ametropia and found to be used in nature by the seal. To increase the precision of intraocular lens calculation the average change in corneal power induced at surgery is used to predict the postoperative corneal power. By controlled suture release in the postoperative phase, the amount of induced corneal astigmatism is adjusted to obtain a simple myopic astigmatism. Patients with an intraocular lens and a simple myopic astigmatism as a residual ametropia, are spectacle independent most of the time. They need their glasses only for driving or prolonged reading. The methods used to calculate the postoperative cornea, the post-operative anterior chamber depth and the intraocular lens are described with the corresponding calculator programs for the HP 41C calculator. Clinical results and measurements of the depth of focus are shown in a series of 50 successive implant cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01675203
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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