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Torsional fibrosis in the anterior capsule following lens implantation

Torsional fibrosis in the anterior capsule following lens implantation. Kavita Gala David Spalton James Boyce Anish Dhital ST THOMAS’S HOSPITAL, LONDON No financial or proprietary interest No financial or proprietary interest. INTRODUCTION.

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Torsional fibrosis in the anterior capsule following lens implantation

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  1. Torsional fibrosis in the anterior capsule following lens implantation Kavita Gala David Spalton James Boyce Anish Dhital ST THOMAS’S HOSPITAL, LONDON No financial or proprietary interest No financial or proprietary interest

  2. INTRODUCTION Torsional fibrotic changes are sometimes seen in the anterior capsule following lens implantation Typically, these have a clockwise spiralling appearance

  3. AIM To study the evolution of spiralling changes and analyze their relation to patient factors

  4. METHODS Retrospective study Screened 5000 images from our database of retroillumination images for eyes with typical spiralling The sequences of the images for each eye obtained For every image, the next non spiralling image from the database taken as control Images of the other eye extracted

  5. METHODS Changes in spiralling over time observed POCO software used to measure PCO POCOman software used to measure rhexis area IOL power Capsulorrhexis size PCO percentage at 2 years Compared to control eyes

  6. Spiralling example 1PHP 22.0 SN60WF OD 3 MTHS 3 YRS 1 yr 2 YRS

  7. Spiralling example 2BAB 22.5 Tecnis ZM001 OD 1 MTH 3 YRS 3 YRS 6 MTHS

  8. Control eye exampleATO 23.5 OS SN60WF 1 MTH 2 YRS 1 YR 3 MTHS

  9. RESULTS IOL distribution in each group

  10. RESULTS

  11. Spiralling changes are caused due to torsional forces induced while dialling the lens into the bag due to the IOL binding with the bag Spiralling appears to be induced at surgery and then remains unchanged These changes are more commonly seen with a smaller rhexis- presumably because there is more contact between IOL and the bag. CONCLUSION

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