What Is Progressive Multifocal Leukoencephalopathy? Progressive multifocal leukoencephalopathy (PML) is a rare and serious infection that attacks part of your brain. You can get it when your body ...
In such cases, Mr Lee often recommends multifocal contact lenses to his presbyopia clients, and warns that if the condition is left untreated, it can worsen your eyesight. “Multifocal contact ...