Account for the relationship as it is now
Use a tone that fits the present relationship, not the closeness, authority, or access that existed in the past. For a message about how to support someone with vision loss, use this factual base: use the person's description, note the access barrier or practical need, and avoid guessing about severity.
Ask without assigning an obligation
Explain what you hope for while making decline, delay, or a different format genuinely acceptable. Ask which accommodation or form of help is useful and follow through without making it a favor. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Keep the ending honest
Do not demand medical proof in a personal relationship, offer cures, or frame disability as inspiration. Use qualified clinical or emergency care for urgent health concerns and the proper rights process for denied accommodations. Avoid future promises, guilt, flattery, or nostalgia that imply the recipient owes you access.