Capsular bag IOL subluxations are a nightmare. With time, many IOLs are dislocated, and managing them is a headache. My special guest in this column is Thomas Oetting, who has devised a sliding ...

Researchers have unearthed a robust physics-based mechanism that dictates the sliding strength, or resistance to slippage, of the most common type of surgical knot. In particular, they have found that ...

DNA has the nasty habit of getting tangled and forming knots. Scientists study these knots to understand their function and learn how to disentangle them (e.g. useful for gene sequencing techniques).