It would help if you tried again because of technological developments involving lens designs and materials. Additionally, unusual prescriptions mean the lenses may not work out the first few times. However, the eye care professional may try at least four different trial lenses before advising otherwise. You may also be having certain eye conditions which make contact lens wear difficult. They include severe dry eye, blepharitis, and severe eye allergies. Nevertheless, you may find contact lenses comfortable to wear once some of these conditions have been treated.