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2020, Number 3

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Rev Cub Oftal 2020; 33 (3)

Results of intraocular lens calculation with the Holladay 2 formula in cataract patients

Veitía RZA, Hernández GME, Pérez CEC, Rodríguez SB, Méndez DAM, Hernández LI

Language: Spanish
References: 25
Page: 1-15
PDF size: 627.09 Kb.


ABSTRACT

Objective: Determine refractive results in patients undergoing cataract surgery based on intraocular lens dioptric power calculation with the Holladay 2 formula.
Methods: A prospective longitudinal descriptive study was conducted of 222 eyes of 173 patients undergoing cataract surgery by phacoemulsification technique. IOL Master 700 and the Holladay 2 formula were used for lens calculation.
Results: There was a predominance of the female sex and the over-60 years age group. The postoperative period was characterized by improvement in visual acuity without correction and corrected of more than 4 lines on the Snellen chart, regardless of axial length, with no significant changes in the keratometric cylinder. In 69.0% of the cases, the final refractive result was within the range of emmetropia. Eyes larger than 26 mm displayed a spherical equivalent reduction above 6 diopters postoperative, whereas eyes smaller than 22 mm showed the greatest difference between the dioptric power of the intraocular lens implanted and the one suggested by the conventional formula.
Conclusion: The Holladay 2 formula is useful for intraocular lens calculation in all axial length ranges.


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