Lasers, optical systems and safety in ophthalmology: a review

  • Franz Fankhauser
  • Ulrich Dürr
  • Hans Giger
  • Pascal Rol
  • Sylwia Kwasniewska


This is a review of optical methods related to biomicroscopy and laser treatment of the posterior segment of the eye. Contact lenses can be used to observe optical structures and couple laser radiation into the eye for a vast range of conditions and techniques. A small laser spot size is indispensable for photodisruptive work, though this requires a large beam diameter at the pupil and therefore optical systems and techniques such as scleral indentation which maximize the pupillary beam diameter are preferred. For coagulation work the choice of beam focusing optics is crucial for optimum safety. Vitreous replacement can be used to change the refractive power of the eye and permit new combinations of treatment and optical systems. This review covers many aspects of laser irradiation of the eye. It should be clear that, with the multitude of different procedures and optical systems involved, the laser surgeon is faced with a daunting task in assessing and meeting safety limits.


Optical System Beam Diameter Laser Spot Posterior Segment Daunting Task 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • Franz Fankhauser
    • 1
  • Ulrich Dürr
    • 2
  • Hans Giger
    • 1
  • Pascal Rol
    • 3
  • Sylwia Kwasniewska
    • 1
  1. 1.Lindenhofspital BernBernSwitzerland
  2. 2.Meridian AGBernSwitzerland
  3. 3.University Eye ClinicZurichSwitzerland

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