Calculation of the power of anterior chamber implants
| Autor: | Jose R Villada, Palaniswamy Sunder Raj, Tayo Akingbehin |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Lenses
Intraocular Best corrected visual acuity medicine.medical_specialty Visual acuity Anterior Chamber business.industry medicine.medical_treatment Visual Acuity Intraocular lens Prostheses and Implants Refraction Ocular Sensory Systems Power (physics) Cellular and Molecular Neuroscience Ophthalmology Predictive Value of Tests Predictive value of tests medicine Humans Statistical analysis medicine.symptom business Constant (mathematics) Research Article |
| Zdroj: | British Journal of Ophthalmology. 76:303-306 |
| ISSN: | 0007-1161 |
| DOI: | 10.1136/bjo.76.5.303 |
| Popis: | Ninety seven eyes with anterior chamber implants and a best corrected visual acuity of at least 6/12 were studied, firstly, to compare the predictive accuracies of the commonly used formulas for intraocular lens (IOL) power calculation and, secondly, to determine the effect of optimising the 'A' constant on the predictive accuracies of the empirical Sanders-Retzlaff-Kraff (SRK) formulas. The accuracies of the empirical formulas (SRK and SRK II) were generally similar to those of the theoretical formulas (Binkhorst II and Colenbrander-Hoffer). However the original SRK formula was more accurate than the two theoretical formulas in long eyes and in all eyes overall. Optimisation of the 'A' constants did not improve the predictive accuracy of the empirical SRK formulas. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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