Bag-in-the-lens technique.

Optimal centration of an intraocular lens (IOL) is important for obtaining its intended visual properties. The bag-in-the-lens (BIL) approach is a surgical technique that optimizes centration by centring the lens using both an anterior and a posterior capsulorhexis. The BIL is a monofocal hydrophilic IOL with a biconvex optic and two elliptical plane haptics. The space between the haptics creates an equatorial groove. The IOL is then suspended by placing both anterior and posterior capsular bag rhexis openings into this equatorial IOL groove. As a result, the BIL IOL captures residual lens epithelial cells and therefore additionally seals its position avoiding opacification of the visual axis. In this review, we offer an overview of current literature on the BIL technique.