Predictive Value of Calculated Dioptric Power of Prepupillary Implant Lenses

  • J. M. Thijssen
  • A. F. Deutman
Conference paper
Part of the Documenta Ophthalmologica Proceedings Series book series (DOPS, volume 29)


The calculation of the power of implant lenses has an intuitive importance, because of the large spread in ametropia occuring in a population. Many studies have been published about optical calculations to obtain emme-tropizing lenses (cf. Troutman 1962, Binkhorst 1972, Colenbrander 1973, Binkhorst 1973, Gernet & Ostholt 1973, Oguchi & Van Balen 1974, Thijssen 1973, 1975, 1980, Heyde 1975). But only very few have been devoted to computer calculation of iseikonizing implant lenses (cf. Thijssen 1975, Binkhorst 1976). The introduction of pocket calculators (Binkhorst 1976. Thijssen 1980) decreases the distance of theory to clinical practice considerably.


Anterior Chamber Axial Length Anterior Chamber Depth Lens Thickness Cataracteous Lens 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Binkhorst, C.D. Power of the prepupillary pseudophakos. Brit. J. Ophthalmol. 56: 332 (1972).CrossRefGoogle Scholar
  2. Binkhorst, R.D. The optical design of intraocular lens implants. Ophthalmol. Surg. 6: 17 (1975).Google Scholar
  3. Binkhorst, R.D. Pitfalls in the determination of intraocular lens power without ultrasound. Ophthalmol. Surg. 7 (3): 69 (1976).Google Scholar
  4. Colenbrander, M.C. Calculation of the power of an iris clip lens for distant vision. Br. J. Ophthalmol. 57:735(1973).PubMedCrossRefGoogle Scholar
  5. Delmarcelle, Y., Collignon, J., & Luyckx, J. La profondeur de la chambre anterieure de l’oeil et ses facteur constituants. Bull. Soc. Belge Ophtalmol. 152: 447 (1969).PubMedGoogle Scholar
  6. Gernet, H., & Ostholt, H. Augenseitige Optik: ein neues Gebiet der klinischen Okulo-metrie. Ophthalmologica 166: 120 (1973).PubMedCrossRefGoogle Scholar
  7. Heyde, G.L. van der. A nomogram for calculating the power of the prepupillary lens in the aphakic eye. Bibl. Ophthalmol. 83: 273 (1975).Google Scholar
  8. Kraff, M.C, Sanders, D.R., & Lieberman, H.L. Biometric analysis of intraocular lens power required to produce emmetropia: results of 450 implants. Am. Intraoc. Impl. Soc.J.4: 45(1978).Google Scholar
  9. Oguchi, Y., & Van Balen, A.Th.M. Ultrasonic study of the refraction of patients with pseudophakos. Ultrasound Med. Biol. 1: 267 (1974).PubMedCrossRefGoogle Scholar
  10. Thijssen, J.M. The emmetropic and the iseikonic implant lens: computer calculation of the refractive power and its accuracy. Ophthalmologica (Basel) 171: 467 (1975).CrossRefGoogle Scholar
  11. Thijssen, J.M. Computation of emmetropizing and iseikonizing implant lenses by means of a pocket calculator. Int. Ophthalmol. 2: 39 (1980).CrossRefGoogle Scholar
  12. Troutman, R.C Artipkakia and aniseikonia. Trans. Am Ophthalmol. Soc. 60: 590 (1962).PubMedGoogle Scholar

Copyright information

© Dr W. Junk Publishers, The Hague 1981

Authors and Affiliations

  • J. M. Thijssen
    • 1
  • A. F. Deutman
    • 1
  1. 1.Institute of OphthalmologyUniversity of NijmegenNijmegenThe Netherlands

Personalised recommendations