Arrangement of Lens Fiber Cells (image) Rockefeller University Press Caption The regular hexagonal arrangement of lens fiber cells is disrupted in the absence of tropomodulin1 (right). Credit Nowak, R.B., et al. 2009. J. Cell Biol. doi:10.1083/jcb.200905065. Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.