Refractive state of aphakic and pseudophakic eyes of dogs.

M. G. Davidson, Christopher J Murphy, M. P. Nasisse, A. S. Hellkamp, D. K. Olivero, M. C. Brinkmann, L. H. Campbell

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Streak retinoscopy was performed by 5 ophthalmologists on 256 eyes (191 dogs) to determine their postoperative refractive state after cataract extraction. Aphakic and pseudophakic eyes that had been implanted with 1 of 5 intraocular lenses (IOL) with dioptric powers ranging from +14.5 to +38 diopters (D) were studied. By use of ANOVA, breed and body type of dog and individual performing refraction were found to have no detectable effect on final refractive state. Mean refractive state of aphakic eyes was +14.4 +/- 2.10 D. Mean refractive state for different IOL powers was as follows: +14.5 D IOL = +11.54 +/- 1.18 D (n = 13); +30 D IOL = +5.15 +/- 1.18 D (n = 105); +34.0 D IOL = +3.5 D (n = 1); +36 D IOL = +2.34 +/- 0.73 D 9 (n = 61); and +38 D IOL = +1.41 +/- 0.56 D (n = 28). Residual hyperopia ranged from +0.5 D to +2.5 D with +38 D IOL, and no eyes were myopic (overcorrected) by use of any of the IOL studied. Linear regression analysis of refractive state on IOL power for all dogs predicted that dioptric strength of +41.53 D was necessary to best approximate emmetropia for the population as a whole. Body type of the dog had only slight effect (< 1.0 D) on predicted optimal IOL power. Further linear regression analysis of the 7 breeds studied predicted variations from +39.62 to +43.14 D in IOL powers necessary to approximate emmetropia.(ABSTRACT TRUNCATED AT 250 WORDS)

Original languageEnglish (US)
Pages (from-to)174-177
Number of pages4
JournalAmerican Journal of Veterinary Research
Volume54
Issue number1
StatePublished - Jan 1993
Externally publishedYes

Fingerprint

Intraocular Lenses
Lens
eyes
Dogs
dogs
Emmetropia
Somatotypes
Linear Models
regression analysis
Retinoscopy
Regression Analysis
breeds
Hyperopia
Cataract Extraction
cataract
Analysis of Variance
analysis of variance

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Davidson, M. G., Murphy, C. J., Nasisse, M. P., Hellkamp, A. S., Olivero, D. K., Brinkmann, M. C., & Campbell, L. H. (1993). Refractive state of aphakic and pseudophakic eyes of dogs. American Journal of Veterinary Research, 54(1), 174-177.

Refractive state of aphakic and pseudophakic eyes of dogs. / Davidson, M. G.; Murphy, Christopher J; Nasisse, M. P.; Hellkamp, A. S.; Olivero, D. K.; Brinkmann, M. C.; Campbell, L. H.

In: American Journal of Veterinary Research, Vol. 54, No. 1, 01.1993, p. 174-177.

Research output: Contribution to journalArticle

Davidson, MG, Murphy, CJ, Nasisse, MP, Hellkamp, AS, Olivero, DK, Brinkmann, MC & Campbell, LH 1993, 'Refractive state of aphakic and pseudophakic eyes of dogs.', American Journal of Veterinary Research, vol. 54, no. 1, pp. 174-177.
Davidson MG, Murphy CJ, Nasisse MP, Hellkamp AS, Olivero DK, Brinkmann MC et al. Refractive state of aphakic and pseudophakic eyes of dogs. American Journal of Veterinary Research. 1993 Jan;54(1):174-177.
Davidson, M. G. ; Murphy, Christopher J ; Nasisse, M. P. ; Hellkamp, A. S. ; Olivero, D. K. ; Brinkmann, M. C. ; Campbell, L. H. / Refractive state of aphakic and pseudophakic eyes of dogs. In: American Journal of Veterinary Research. 1993 ; Vol. 54, No. 1. pp. 174-177.
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