I just saw your query concerning your vision correction. If you have not already received a reply to your question and/or you have not had new lenses made for yourself, please be assured that your optician's advice was correct and there will be no negative impact to your vision by undercorrecting your vision by .25d. This is a very minimal amount of adjustment in your prescription and, generally speaking, is an almost unnoticeable change that can be recognized by most people. You are fortunate that your prescription is actually decreasing rather than increasing for it is very rare that this happens as people age because your visual acuity naturally decreases. Congratulations and good luck!