No abstract

The calculated size of spherical particles that scatter efficiently was close to the observed dimensions of MLBs in cataractous nuclei. Particle refractive indices only 0.02 units different from the surrounding cytoplasm scatter a significant amount of light. These results suggest that the MLBs observed in human age-related nuclear cataracts may be major sources of forward light scattering that reduces contrast of fine details, particularly under dim light.

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Mycobacterium chelonae is ubiquitous in the environment but is an uncommon cause of ocular and periocular infections. It is a pathogen that has been gaining increased attention in the ophthalmic literature because of the relatively large number of infections associated with laser-assisted in situ keratomileusis and other forms of refractive surgery. The authors present 3 patients who developed canaliculitis culture positive for M. chelonae more than a year after SmartPlug placement. These cases highlight some of the clinical scenarios that may be encountered in those who present with canaliculitis with a history of intracanalicular plug placement. Therapeutic considerations are also suggested.

No abstract