Detection and measurement of corneal alterations due to conventional contact lens wear.

Corneal changes, especially edema, are discussed, with the purpose of offering a selection of many tests intended to give the practitioner indications of the response of the eye to contact lens wear. Some old, some current, and some futuristic techniques, including a few now operative but largely experimental, are mentioned, as is a concluding opinion of the minimum clinical routine providing the "best" information of the edema state.