What’s New in Midday Fogging?

In the January 2023 edition of Investigative Ophthalmology and Visual Science, Maria Walker et al. examined scleral lens midday fogging (MDF) in 26 eyes of 13 neophyte Europa scleral lens wearers. Quantification of MDF was achieved by analyzing AS-OCT images. Samples of the fluid reservoir were analyzed by liquid chromatography-tandem mass spectrometry. Read more about her findings here.

Clearing the Mist: How to Tackle Scleral Lens Fogging

Why do patients experience scleral lens fogging? Despite the fluid reservoir being a closed environment, a commonplace occurrence among SL wearers is midday fogging (MDF) where debris builds up and become trapped within the FR. It has been reported that up to 46% of patients fit with SLs demonstrate MDF. (1) Many patients and practitioners experience this phenomenon at some point throughout the fitting process which may or may not be resolved with subsequent lens remakes.