Dear Karen: When my husband complained of vision problems such as blurriness, shadows, etc. about 4 yr. ago, his neuro immediately authorized an exam for a glaucoma check - supposedly Sinimet can contribute to the possibilities of glaucoma - no problems have been defined as existing since then (several exams later) but no doctors can give any answerrs about how PD affects eyesight very confidently either. Does anyone know if there is such a thing as specialists in ophthamologists pertaining to PD? Presently my husband has vision difficulties we are at a loss about how to deal with..... Marie carepartner for husband 69/l2