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Photometric oculometry: A slit-lamp technique for determination of intraocular distances

  • Bent Krogsaa
  • Hans Fledelius
  • Jesper Larsen
  • Henrik Lund-Andersen
Session II: Methology

Abstract

The optics of slit-lamp fluorophotometry were analyzed. This analysis forms the basis of the formulation of a slit-lamp technique called photometric oculometry, which makes it possible to measure intraocular distances.

A comparison between ultrasonography and photometric oculometry in the determination of the ocular axial length was carried out. Measurements in 11 eyes showed statistical agreement, with a mean of 22.90 mm, SD ±1.815 (ultrasound), and a mean of 23.17 mm, SD ±1.667 (photometry).

The principle involved in photometric oculometry is of special importance for the calculation of the blood-retinal barrier permeability to fluorescein by vitreous fluorophotometry, since the method allows the volume of the vitreous body to be estimated directly from the slit-lamp fluorophotometer recording.

Keywords

Public Health Permeability Fluorescein Axial Length Special Importance 
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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References

  1. Cunha-vaz JG, Fonseca JR, Abreu JF, Ruas MA (1979) Detection of early retinal change in diabetes by vitreous fluorophotometry. Diabetes 28:16–19PubMedGoogle Scholar
  2. Davson H (1962) Visual optics and the optical space sense. In: Davson H (ed) The eye, vol. IV. Academic Press, New York London, pp 1–432Google Scholar
  3. Fledelius H (1976) Prematurity and the eye. Ophthalmic 10-year follow-up of children of low and normal birth weight. Acta Ophthalmologica [Suppl] 128:1–245Google Scholar
  4. Goldmann H (1970) In: Straub W (ed) Die Ophthalmologischen Untersuchungsmethoden, vol I. Ferdinand Enke Verlag, StuttgartGoogle Scholar
  5. Krogsaa B, Lund-Andersen H, Larsen J, Fledelius H (1984a) Photometric oculometry I. Acta Ophthalmologica (Copenh) 62:274–289Google Scholar
  6. Krogsaa B, Lund-Andersen H, Larsen J, Fledelius H (1984b) Photometric oculometry II. Acta Ophthalmologica (Copenh) 62:290–299Google Scholar
  7. Lund-Andersen H, Krogsaa B, Larsen J (1985) The calculation of the blood-retinal barrier permeability. Graefe's Arch Clin Exp Ophthalmol 222:173–176Google Scholar

Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Bent Krogsaa
    • 1
  • Hans Fledelius
    • 2
  • Jesper Larsen
    • 3
  • Henrik Lund-Andersen
    • 1
  1. 1.The University Eye Clinic, RigshospitaletCopenhagenDenmark
  2. 2.The Eye ClinicHillerod HospitalHillerodDenmark
  3. 3.Math-Tech InstituteCharlottenlundDenmark

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