Contact lens-induced pseudo-dystrophy of the cornea?

Whitish dots in the stroma of the cornea resembling the cloudy dystrophy were observed in 4 patients wearing HEMA contact lenses; a lattice-like corneal pattern was seen in another patient wearing HEMA contact lenses. There were no complaints. Visual acuity was normal. Corneal sensitivity was normal or reduced. The pseudo-dystrophies vanished after replacement of the HEMA lenses by Boston IV material.