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Contact glass for use with high power lasers — geometrical and optical aspects

Solution for the angle of the anterior chamber

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Abstract

A new mirror contact glass for irradiation of pathological structures within the angle of the anterior chamber with high power lasers is described. The new contact glass is distinguished by its optimized optical characteristics. Due to its spherical front surface, tipping movements, as necessary in inspection and aiming manoeuvres, have no significant influence on the focus diameter. That the imaging quality is independent of the contact glass manipulations is seen as essential for laser surgical tasks with high power lasers, since changes in the focus diameter critically affect the power density at the focus and thus the intensity of the microsurgical effects. The increased spatial reliability of the laser-induced microexplosion is thought to be a further merit of the new contact glass.

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References

  1. Abraham, R.K. Protocol for single session argon laser iridectomy for angle closure glaucoma. Int. Ophthalmol Clin 21: 145–165 (1981).

    Google Scholar 

  2. Aron-Rosa, D., J.C. Griesemann & J.J. Aron. Applications ophtalmologiques des laser Néodymium YAG pulsés-Ouvertures préoperatoires des cristallins avant implants et des cataractes secondaires derrière implants cristalliniens. J. Fr. Ophtalmol. 4: 61–66 (1981).

    Google Scholar 

  3. Becker, S.C. Clinical gonioscopy. A text and stereoscopic atlas. The C.V. Mosby Company, St. Louis, Mo. (1972).

    Google Scholar 

  4. Bloembergen, N. Laser-induced electric breakdown in solids. IEEE J. Quant. Electr. QE-10: 375–386 (1974).

    Google Scholar 

  5. Comberg, D. La photocoagulation avec un verre de contact à miroir. Bull. Soc. Fr. Ophtalmol. 77: 545–547 (1964).

    Google Scholar 

  6. Frankhauser, F. & W. Lotmar. Methods of photocoagulation through the Goldmann contact glass. Mod. Probl. Ophthalmol. 7: 256–272 (1968).

    Google Scholar 

  7. Fankhauser, F., H.P. Lörtscher & E. van der Zypen. Clinical studies on high and low power laser radiation upon some structures of the anterior and posterior segments of the eye. Int. Ophthalmol 5: 15–32 (1982).

    Google Scholar 

  8. European Patent No. 700.78.PCT.

  9. Kraswnov, M. M.Q-switched laser goniopuncture. Arch. Ophthalmol. 92: 37–41 (1974).

    Google Scholar 

  10. Müller, W & H.P. Brandt. Gonioskopie und Goniophotographie. Ferdinand Enke Verlag, Stuttgart (1979).

    Google Scholar 

  11. Riedel, H. Photography. In: Glaucoma, conceptions of a disease, edit. K. Heilmann & T. Richardson. Georg Thieme Publ., Stuttgart, p. 249 (1978).

    Google Scholar 

  12. Schirmer, K.E. Argonlaser-Iridektomie und Gonioplastik in der Behandlung des Engwinkelglaukoms. Klin. Monatsbl. Augenheilkd. 181: 132–134 (1982).

    Google Scholar 

  13. Van der Zypen, E., F. Fankhauser, H. Bebie & J. Marshall. Changes in the ultrastructure of the iris after irradiation with intense light. Adv. Ophthalmol. 39: 59–180 (1979).

    Google Scholar 

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Roussel, P., Fankhauser, F. Contact glass for use with high power lasers — geometrical and optical aspects. Int Ophthalmol 6, 183–190 (1983). https://doi.org/10.1007/BF00141127

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