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Intraocular lens power calculation
Author(s) -
Rouhiainen Harri J.
Publication year - 1989
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1989.tb00727.x
Subject(s) - refraction , lens (geology) , intraocular lens , power (physics) , optics , optical power , refractive error , intraocular lens power calculation , optometry , mathematics , ophthalmology , physics , cornea , medicine , visual acuity , keratometer , laser , quantum mechanics
Two hundred and two consecutive intraocular lens (IOL) implantations, the lens power being predicted with the SRK‐method, are retrospectively analyzed, and the factors possibly influencing the error in IOL power prediction are evaluated. The actual post‐operative refraction is compared to the expected refraction for each IOL and to a hypothetical refraction that would have been obtained by a standard‐power IOL implant. Axial length measurement and a high pre‐ and post‐operative astigmatic error, along with low‐ and high power IOL predictions, are the factors that most influence the post‐operative refractive error. A similar distribution of post‐operative refraction could have been obtained by using a standard‐power IOL instead of pre‐operative calculation.