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The role of ORA system® intraoperative wavefront aberrometry among the cataract surgery armamentarium for best postoperative refractive results

Poster Details

First Author: O.Moraru ROMANIA

Co Author(s):    M. Iliescu   C. Moraru                 

Abstract Details


Since cataract patients have great postoperative expectations for spectacle independence, both surgeons and industries make efforts attempting to enhance accuracy of the desired postoperative target of refraction. Our paper evaluates the role of ORA system® Intraoperative Wavefront Aberrometry among the cataract surgery armamentarium for more predictable postoperative refractive results. Our purpose was to determine if ORA can empower refractive decision-making in cataract surgery.


Oculus Eye Clinic – Bucharest – Romania


This prospective clinical trial comprises 30 eyes operated for cataract with the implantation of a Posterior Chamber Intraocular Lens (IOL). The diopter of the IOL for each case was selected by the surgeon using the preoperative biometry. ORA System Intraoperative Wavefront Aberrometry was used at the end of Phacoemulsification and the IOL diopter provided by ORA was recorded along with all other data measured. We also used ORA after implantation and recorded post-implantation 'live' refraction. We evaluated postoperative objective refraction at one month and compared our results obtained using standard biometry with the ones suggested by ORA.


We implanted Posterior Chamber IOLs with a diopter range from 13D to 26D. In 14 cases (47%) there was agreement between our biometry and ORA diopter indication with good one month postoperative results. In 8 cases (26%) the results were better since we selected the diopter of the IOL based on preoperative biometry, while in 5 cases (17%) the diopter suggested by ORA would have brought us more accurate results. In 3 cases (10%) none of the methods would have led us to the desired results. No correlation was found between anterior chamber depth or axial length and diopter accuracy.


When dealing with cataract patients, achieving the desired postoperative refraction is a great concern for surgeons. Enhancing accuracy for patient satisfaction is our main target. Many steps forward have been made but there is still room for even better results. ORA System® Intraoperative Wavefront Aberrometry shows promise, but improvements and technical innovation are needed in order to make our cataract surgeries more predictable from refractive point of view.

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