Don't rush him. Give phone numbers as digits. Design your agency's publications with the visually impaired in mind. She warned the audience not to get too hung up on language issues. Screen readers can usually interpret Adobe Acrobat files but are totally perplexed when text is scanned into graphic images.
Visual acuity decreases with age.
Hearing also deteriorates with age. Speak to older clients slowly and clearly, and watch and listen for feedback. If you suspect that someone doesn't understand what you're saying, repeat yourself or paraphrase your comments. Arthritis and loss of muscle tone can hamper the mobility of older persons. Physical accessibility issues are important to agencies serving seniors.