Purpose:

To determine the relationship of the anatomical planes of the crystalline lens with the actual position of the intraocular lens in patients with a diagnosis of cataract seen at the Ocular Microsurgery Center of the Cuban Institute of Ophthalmology during the period January 2018 and January 2021.

Methods:

An observational, descriptive, prospective longitudinal study was performed in 89 eyes of 67 patients operated on for cataract with intraocular lens implantation (IOL) by phacoemulsification technique. The IOL Master 700 and the SRK/T formula were used to calculate lens power. The OCT image provided by the IOL Master 700 was used to determine the equatorial plane and central plane of the crystalline lens, as well as the actual position of the intraocular lens.

Results:

The age group 60-79 years was predominant, female gender represented 53 %. Average eye size and ocular biometric measurements in standard average values were the most representative. The equatorial plane showed less difference with the actual intraocular lens position compared to the difference evidenced between the central plane and the actual lens position. The adequate position of the intraocular lens calculated in the capsular bag independent to the axial length, allowed to obtain a refractive result in correspondence to the one expected before surgery.

Conclusion:

The anatomical parameters of the crystalline lens (equatorial plane, central plane) are important variables to be taken into account for the development and improvement of the formulas for the calculation of the intraocular lens.

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