Flap motility as a sign of posterior capsule rupture in peripherally extended anterior capsular tears

Abstract

Purpose

To describe various types of anterior capsular tears and an early diagnostic, flap motility, as a sign of posterior capsular rupture following posterior extension of radial tears.

Design

This was a prospective study carried out in 4,331 eyes that underwent phacoemulsification in a private practice setting from April 2015 to February 2016. Twenty six consecutive cases of anterior capsular tears were included. Morphological features of anterior capsular tears and resultant complications were evaluated. Parameters studied were surgical step during which the tear occurred, shape of tear, its extension in relation to the equator, and flap nature and motility in tear extending up to equator.

Main outcome measures

The main outcome measures were motility and nature of flaps in anterior capsular radial tears and the relation to posterior capsule rupture.

Results

Based on shape, extent, and angulation, anterior capsular tears were categorized into 5 types: Type I, pre-equatorial radial tear (26.92%); Type II, post-equatorial radial tear (3.85%); Type III, Argentinean flag sign pre-equatorial tear (57.69%); Type IV, Argentinean flag sign post-equatorial tear (7.69%), and Type V, mini punch (3.85%). Flaps were either seen to be everted and fluttering or inverted and non-fluttering. In all cases with everted fluttering flaps no posterior capsular rupture (PCR) was observed, while in cases with inverted non-fluttering flaps a PCR was observed (p<0.05).

Conclusion

Everted and fluttering flaps of the anterior capsular tears indicate pre-equatorial tear, while inverted and non-fluttering flaps indicate posterior capsule rupture following tear extension beyond the equator.

Video abstract

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Keywords:

• anterior capsule tear
• posterior capsule rupture
• flap motility sign
• earliest sign

Supplementary material

Video S1 Flap motility sign.

Acknowledgments

This paper was presented as an abstract at the 74th Annual Conference (AIOC) of All India Ophthalmological Society, Kolkata, India; February 25–28, 2016. Dr Tushya Om Parkash now has a degree in MS Ophthalmology and is currently affiliated with Dr Om Parkash Eye Institute, Amritsar, India (as of July 11, 2017).

Disclosure

The authors report no conflicts of interest in this work.