In her article Susan Resnick, OD, FAAO, FSLS outlines steps that can be taken to prevent CL drop-out:
A comprehensive pre-fitting evaluation is critical to assess refractive requirements and ocular surface health.
Understanding the patient’s goals with their lenses is the best guide to selecting lens modality.
Working with a wide range of designs improves our ability to successfully meet the needs of a greater number of patients.
Develop a sound clinical rationale for lens selection and clearly explain to the patient why you are prescribing a particular lens.
Avoid giving choices or using the word “recommend.” Rather, outline your plan, informing the patient of alternatives should you need to change course. This bolsters patient confidence in you as the professional, as well as supporting their understanding that contact lens fitting and prescribing is a process.
How far away are we from Susan's 5% drop our rate, hugely I would suggest. Read her article
here.