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Calculation of size and location of autologous ipsilateral rotating keratoplasty

  • Clinical Investigation
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Abstract

• Background: Autologous ipsilateral rotating keratoplasty is a special form of keratoplasty in which a nonprogressive opacification of the centre of the cornea is rotated towards the limbus and the clear peripheral cornea is rotated into the optical axis of the eye. This study was performed to find an equation for calculating the best size and location of the trephine for this special kind of keratoplasty • Methods: Geometrical calculations were used to derive the formula • Results: We arrived at the following equation for the best diameter of the trephine: diameter (trephine) = 3/4 diameter(cornea)−1/2e(e = preoperative distance between corneal centre and nearest edge of opacity covering corneal centre). The postoperative diameter of the optical zone is: 2 × diameter(trephine) diameter(cornea). A postoperative clear optical zone of half the corneal diameter is achieved if the opacity just touches but does not extend beyond the corneal centre. For a postoperative optical zone of at least 30% (40%) of the corneal diameter, the opacity is preoperatively not allowed to extend beyond the corneal centre for more than 20% (10%) of the corneal diameter • Conclusion: This equation can be used for calculating the optimum size and location of the trephine for autologous ipsilateral rotational keratoplasty. For that purpose it is advisable to take photographs preoperatively.

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References

  1. Bourne WM, Brubaker RF (1978) A method for ipsilateral rotational autokeratoplasty. Ophthalmology 85:1312–1316

    Google Scholar 

  2. Buxton JN, Nordon RA (1986) Indications and contrainidications. In: Brightbill FS (ed) Corneal surgery. Theory, technique, and tissue. Mosby, St. Louis, p 132

    Google Scholar 

  3. Castroviejo R (1966) Atlas of keratectomy and keratoplasty. Saunders, Philadelphia, pp 236–237

    Google Scholar 

  4. Forster AE (1923) A review of keratoplastic surgery and some experiments in keratoplasty. Am J Ophthalmol 6:366–365

    Google Scholar 

  5. Friede R (1937) Durchgreifende optische Autokeratoplastik mit Narbendrehung. Arch Augenheilkd 110:426–449

    Google Scholar 

  6. Gadle HS (1921) The present status of keratoplasty. Am J Ophthalmol 4:895–899

    Google Scholar 

  7. Gillette TE, Nebres DW (1988) Computer modeling of rotational autokeratoplasty in the cornea. In: Dwight H (ed) Transactions of the World Congress on the Cornea III. Raven, New York, pp 237–240

    Google Scholar 

  8. Gunderson T, Calnan AF (1965) Corneal autografts, ispilateral and contralateral. Arch Ophthalmol 73:164–168

    Google Scholar 

  9. Karpouzas I, Pouliquen YJM (1991) Computerized method for rotational autokeratoplasty. Cornea 10:369–371

    Google Scholar 

  10. Kraupa E (1914) Transposition durch Lappendrehung, eine neue Methode der Keratoplastik. Zentralbl Ges Ophthalmol 1:132

    Google Scholar 

  11. Magitot A (1913) Présentation d'un cas de keratoplastie opéré depuis 6 mois (Procédé de transposition autoplastique). Bull Soc Ophthalmol Fr 26:81–83

    Google Scholar 

  12. Menezo JL, Taboadi JF, Cisneros AL, Ferrer E (1986) Rotational autograft reconstruction of the anterior segment and intraocular lens implantation. J Cataract Refract Surg 12:146

    Google Scholar 

  13. Morax V (1913) Keratoplastie par transposition. Clin Ophthalmol 19:108

    Google Scholar 

  14. Mortada A (1965) Rectangular autogenous penetrating keratoplasty. Am J Ophthalmol 59:795–799

    Google Scholar 

  15. Naumann GOH, Sautter H (1991) Surgical procedures on the cornea. In: Blodi FC, Mackensen G, Neubauer H (eds) Surgical ophthalmology 1. Springer, Berlin Heidelberg New York, p 475

    Google Scholar 

  16. Naumann GOH, Völcker HE, Gäckle D (1977) Ipsilaterale Rotations-Autokeratoplastik. Klin Monatsbl Augenheilkd 170:488–493

    Google Scholar 

  17. Stocker FW (1969) Rotating autokeratoplasty. South Med J 62:1183–1184

    Google Scholar 

  18. Vasco-Posada J (1967) Ipsilateral autokeratoplasty. Am J Ophthalmol 64:717–721

    Google Scholar 

  19. Wilson RS (1976) “Figure 8” ipsilateral autokeratoplasty: a modification using standard corneal trephines. Arch Ophthalmol 94:121–122

    Google Scholar 

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Authors and Affiliations

  1. Universitäts-Augenklinik, Universität Erlangen-Nürnberg, Schwabachanlage 6, D-91054, Erlangen, Germany

    Jost B. Jonas & Songhomitra Panda-Jonas

Authors
  1. Jost B. Jonas
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  2. Songhomitra Panda-Jonas
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Jonas, J.B., Panda-Jonas, S. Calculation of size and location of autologous ipsilateral rotating keratoplasty. Graefe's Arch Clin Exp Ophthalmol 232, 538–544 (1994). https://doi.org/10.1007/BF00181997

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  • DOI: https://doi.org/10.1007/BF00181997

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