Three brands of daily disposable silicone hydrogels showed similar average fit.
Lag reduced, but push-up recovery speed increased from 8 to 12 h.
Lens fit was not correlated with comfort, ocular physiology or lens wettability.
The fit of lenses on an individual varied between brands unpredictably.
Consequently, substitution of lens brand without rechecking fit is Q3 unadvisable.