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.
Highlights
Capsular Block Syndrome (CBS) is a rare complication of cataract removal that is categorized into three types depending on the time of onset: intraoperative, early postoperative, and late postoperative [1]
Early-onset postoperative CBS is characterized by shallow Anterior Chamber Depth (ACD), capsular bag distension, and postoperative myopic shift in refractive status, while late postoperative CBS is typified by capsular bag distention and the accumulation of a milky-white liquefied substance between the intraocular lens (IOL) and posterior
We present clinical findings of three cases of postoperative CBS diagnosed with the aid of Pentacam Scheimpflug imaging and virtual eye simulation
Summary
Capsular Block Syndrome (CBS) is a rare complication of cataract removal that is categorized into three types depending on the time of onset: intraoperative, early postoperative, and late postoperative [1]. Early-onset postoperative CBS is characterized by shallow Anterior Chamber Depth (ACD), capsular bag distension, and postoperative myopic shift in refractive status, while late postoperative CBS is typified by capsular bag distention and the accumulation of a milky-white liquefied substance between the intraocular lens (IOL) and posterior. Three patients underwent uneventful cataract surgery at our hospital. Pentacam Scheimpflug imaging (PentacamAXL ; OCULUS Optikgeräte GmbH, Wetzlar, Germany) were performed before and after Nd:YAG laser posterior capsulotomy. 52 The Open Ophthalmology Journal, 2019, Volume 13 Hu and Hu. Clinical Features Case 1 Gender Male Female Age (years old)
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