A visual simulator can provide patients with the experience of vision with multifocal intraocular lenses before actual implantation, helping to manage patients' expectations.
This technology is also useful for patients opting for multifocal contact lenses. An excellence replication of the contact lens performance on eye was achieved with the SimVis simulation. For different lens designs with different power additions.
The device also was tested using different natural images at far and near distances under conditions during the day and at night. When tested in a patient with, for example, corrected binocular far vision, the scores at the far distance were high and the scores for near were low.
When bilateral bifocal correction was provided the far vision decreased slightly and the near vision improved. This also can be applied to monovision and modified monovision.
Prof. Marcos noted that when the patient is tested with different corrective options, surgery can proceed with much more certainty regarding the postoperative vision.
The physician can choose the desired lenses and control the test on an iPad. The management of the mobile device allows connection of every iPad to the cloud, remote management of the devices, security management, remote app updates, monitoring and tracking, and remote troubleshooting. In addition, when new IOL designs become available the software is updated.
“This technology provides a powerful back-end,” she explained. “Over and above monitoring the use of the SimVis, we can monitor different patient lens preferences, the rates of actual implantations of those IOLs, and the conversion rate to multifocality.”
Prof. Marcos explained that the information is useful and is enabled by the fact that the preoperative clinical testing can be performed before surgery.
“We believe that SimVis represents a new paradigm in presbyopia correction that provides patient education, aid in lens selection, reduced uncertainty preoperatively, virtual clinical trials, the ability to test multiple lenses, and large data sets of patient preferences and usage,” she concluded.
Susana Marcos, PhD
Prof. Marcos is a coinventor of SimVis Technology and co-founder and shareholder in 2EyesVision.