AI Article Synopsis
- The study aimed to assess the degree of zonular weakness by observing lens movement during continuous curvilinear capsulorhexis (CCC) and to create a classification system for it.
- The research was conducted at Kozawa Eye Hospital in Japan, analyzing 402 eyes from patients who underwent cataract surgery procedures.
- The findings showed that most eyes exhibited Grade I weakness (68.6%), with an increase in the severity of zonular weakness correlating with greater use of stabilization devices during surgery.
Article Abstract
Purpose: To quantify zonular weakness based on lens movement at the start of continuous curvilinear capsulorhexis (CCC) and establish a classification system for it.
Setting: Kozawa Eye Hospital and Diabetes Center, Mito, Japan.
Design: Retrospective interventional case series.
Methods: We examined 402 consecutive eyes of 316 patients who underwent CCC, phacoemulsification and aspiration (PEA), and intraocular lens (IOL) implantation. The movement of the lens capsule was measured using images from video recordings of the CCC procedure. Zonular weakness was classified based on the shifted distance: Grade I, less than 0.20 mm; Grade II, 0.20-0.39 mm; and Grade III, greater than 0.40 mm. For each of these grades, we examined the use of the capsule stabilization device during PEA, the surgical procedure for lens removal, and IOL fixation.
Results: We classified 276 eyes (68.6%) as Grade I, 102 eyes (25.4%) as Grade II, and 24 eyes (6.0%) as Grade III. As the grade increased, the use of the capsule stabilization device in PEA and scleral suture fixation of IOL increased.
Conclusions: Zonular weakness was quantified by measuring the movement of the lens capsule. An objective classification of zonular weakness based on lens movement may be useful for selecting the appropriate device and procedure during cataract surgery.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5398681 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0176169 | PLOS |
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- Researchers conducted a matched case-control study involving 28 patients in each group, focusing on various ocular measurements like lens thickness and anterior chamber depth.
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