[Calculation for emmetropic intraocular lenses in hypermetropia]
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Updated: Sep 30, 2026

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
1Dĕtská ocní klinika UK 2. LF a FN Motol, Praha. martin.hlozanek@post.cz
Abstract:
Authors evaluated postoperative refractive errors after implantation of intraocular lens at the set of 429 eyes. There predominated eyes with short axial length (AL) at this set: 304 eyes had AL < 22 mm, average AL was 21.54 mm. The basic point was to correct the linearity of SRK formula by different way from SRK II formula, while keeping the new formula simple to use. Authors reached following modification of A-constant in SRK formula: new A-constant = original A-constant + C, where C = 0,146*AL2 - 7,702*AL + 100,130.
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