Abstract

CUAN AGUILAR, Yoriel et al. High-technology imaging systems in cataract surgery. Rev Cubana Oftalmol [online]. 2018, vol.31, n.3, pp. 1-12. ISSN 1561-3070.

Current cataract surgery has become refractive surgery, for it is also aimed at correcting both spherical and cylindrical refractive defects in the same procedure, thus achieving emmetropia without optical correction at all distances. For this we must have a true reading of the total corneal astigmatism and a correct identification of the meridian to be treated. Today there are advanced technological devices capable of providing these and other preoperative and intraoperative data with great reliability. Some of these systems, such as Verion, Callisto Eye and TrueGuide, use corneal topography with limbus registration and after capturing a preoperative image, they "remember" it during surgery to generate the target meridian on a monitor or through the surgical microscope, thus helping achieve precise alignment of the toric intraocular lens. They can even offer live three-dimensional images. Others, such as the ORA and Holos IntraOp systems, use intraoperative wavefront aberrometry to help the surgeon choose the power of the toric intraocular lens and then align it. These instruments provide continuous refractive feedback in real time for astigmatic correction in the same surgical act. Undoubtedly, these systems are part of a technological revolution within the field of current crystalline lens surgery that enable greater precision and prediction of refractive results and are essential elements if we want to achieve cataract surgery of excellence. This review was conducted to obtain information about high-technology imaging systems currently used in crystalline lens surgery, and show their potential to achieve more accurate postoperative refractive results.

Keywords : Imaging systems; topography; aberrometry; astigmatism; meridian.

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