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The newer generation intraocular lens power calculation formulae in anterior chamber implants

Abstract

One hundred and fifty-one eyes with anterior chamber implants and a best corrected visual acuity of at least 6/12 were studied to compare the predictive accuracies of the newer generation intraocular lens power calculation formulae. There was no statistically significant difference between the predictive accuracies of the SRK (Sanders—Retzlaff—Kraff), SRK II, SRK/Theoretical (SRK/T) and Holladay formulae. All these four formulae were more accurate than the Binkhorst II formula.

References

  1. 1

    Colenbrander MC : Calculation of the power of an iris clip lens for distant vision. Br J Ophthalmol 1973, 57: 735–40.

    CAS  Article  Google Scholar 

  2. 2

    Binkhorst CD : Dioptrienzahl kunstlicher Augenlinsen. Klin Monatsbl Augenheilkd 1973, 162: 354–61.

    CAS  PubMed  Google Scholar 

  3. 3

    Sanders D, Retzlaff J . Kraff M, Kratz R : Comparison of the accuracy of the Binkhorst. Colenbrander and SRK implant power prediction formulas. Am Intraocul Implant Soc J 1981, 7: 337–40.

    CAS  Article  Google Scholar 

  4. 4

    Sanders DR . Retzlaff J . Kraff MC : Comparison of the SRK II formula and other second generation formulas. J Cataract Refract Surg 1988, 14: 136–41.

    CAS  Article  Google Scholar 

  5. 5

    Holladay JT, Praeger TC, Chandler TY, Musgrove KH : A three-part system for refining intra-ocular lens power calculations. J Cataract Refract Surg 1988, 14: 17–24.

    CAS  Article  Google Scholar 

  6. 6

    Dang MS, SunderRaj P : SRK II formula in the calculation of intra-ocular lens power. Br J Ophthalmol 1989, 73: 823–6.

    CAS  Article  Google Scholar 

  7. 7

    Richards SC, Steen DW : Clinical evaluation of the Holladay and SRK II formulas. J Cataract Refract Surg 1990, 16: 71–4.

    CAS  Article  Google Scholar 

  8. 8

    Sanders DR, Retzlaff JA, Kraff MC, Gimbel HV, Raanan MG : Comparison of the SRK/T formula and other theoretical and regression formulas. J Cataract Refract Surg 1990, 16: 341–6.

    CAS  Article  Google Scholar 

  9. 9

    Olsen T, Thim K, Corydon L : Theoretical versus SRK I and SRK II calculation of intraocular lens power. J Cataract Refract Surg 1990, 16: 217–25.

    CAS  Article  Google Scholar 

  10. 10

    Coburn RM, Grandon SC, Grandon SC : Intraocular lens implant power calculations: investigations controlling for lens type. J Cataract Refract Surg 1990, 16: 547–64.

    Article  Google Scholar 

  11. 11

    Olsen T, Thim K . Corydon L: Accuracy of the newer generation intraocular lens power calculation formulas in long and short eyes. J Cataract Refract Surg 1991, 17: 187–93.

    CAS  Article  Google Scholar 

  12. 12

    Richards SC, Olson RJ, Richards WL, Brodstein RS, Hale PN : Clinical evaluation of six intra-ocular calculation formulas. Am Intraocul lmplant Soc J 1985, 11: 153–8.

    CAS  Article  Google Scholar 

  13. 13

    Halliday BL : Calculation of intra-ocular lens power-results in practice. Trans Ophthalmol Soc UK 1986, 105: 435–40.

    PubMed  Google Scholar 

  14. 14

    Dang MS, SunderRaj P : Calculation of the power of posterior chamber implants. Afr Asian J Ophthalmol 1990, 8: 142–5.

    Google Scholar 

  15. 15

    Villada JR . Sunder Raj P, Akingbehin T : Calculation of the power of anterior chamber implants. Br J Ophthalmol 1992, 76: 303–6.

    CAS  Article  Google Scholar 

Download references

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Correspondence to Palaniswamy SunderRaj.

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SunderRaj, P., Villada, J. The newer generation intraocular lens power calculation formulae in anterior chamber implants. Eye 6, 499–501 (1992). https://doi.org/10.1038/eye.1992.105

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Keywords

  • Anterior chamber lens
  • Biometry
  • Empirical formula
  • Intraocular lens power calculation
  • Theoretical formula

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