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CASE REPORT

Virtual Eye Simulation: An Aid in Evaluation of Capsular Block Syndrome

The Open Ophthalmology Journal 31 May 2019 CASE REPORT DOI: 10.2174/1874364101913010051

Abstract

Objective:

To demonstrate the findings of three consecutive cases of postoperative Capsular Block Syndrome (CBS) diagnosed with the aid of Pentacam virtual eye simulation images.

Methods:

Observational case series report. Three patients underwent uneventful cataract removal and presented with blurry vision ranging from 4 days to 5 years after the surgeries were performed.

Results:

In a case of early-onset postoperative CBS, virtual eye simulation images clearly revealed a reduced posterior chamber depth caused by the accumulation of transparent fluid in the area between the intraocular lens and the posterior capsule. In two cases of late-onset postoperative CBS, virtual eye simulation images better visualized the alignment between intraocular lens (IOL) and iris than slit lamp examination and Schiemflug images. All three of the cases underwent neodymium-doped yttrium aluminum garnet (Nd:YAG) laser capsulotomy, and their capsular bag distensions were resolved immediately. The patients with misalignments between IOL and iris experienced more improvement in best-corrected visual acuity as opposed to the one who did not.

Conclusion:

Virtual eye simulation is found to be a useful way in visualizing misalignment between IOL and iris and assisting diagnoses of both early- and late-onset postoperative capsular block syndrome.

Keywords: Capsular block syndrome, Virtual eye simulation, Scheimpflug image, Nd:YAG laser, Cataract, Anterior chamber depth.
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