Fitness to drive, confidentiality, and a patient who drove herself in
Mrs. L, 79, attends alone for a routine examination. She has bilateral cataract and early dry age-related macular degeneration. Best-corrected acuity is 6/18 OD and 6/21 OS; with both eyes open and a +2.50 near add she manages 6/15. Screening visual fields are full to 60° temporally and 40° nasally in each eye. She mentions two minor collisions in the past year, both at junctions, and still drives to church, the shops and her sister's house 20 km away. She drove herself to this appointment. When you raise her vision and driving she becomes tearful: 'Please don't tell my son or anyone - if they take my licence I'll have nothing.' The national vision standard for private driving requires 20/50 (6/15) in the better eye with both eyes open; confirm your current provincial requirement.
1. Set out the competing obligations and decide what you will and will not disclose, and to whom.
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The obligations in tension: duty of care to Mrs. L, confidentiality, her autonomy and consent, and a public-safety duty that provincial law may make explicit.
What governs the answer:
- Optometrists in Canada are generally required, or at minimum authorised, by provincial regulation to report patients who do not meet the medical fitness-to-drive standard to the licensing authority. Verify your province's rule before you speak, not afterwards.
- Any such report goes to the registrar of the licensing authority, not to her son. Disclosure to a family member without consent is a separate act and is not authorised by the reporting duty.
- The most important move is not to promise unconditional secrecy. If you say 'this stays between us' and then report, you have breached trust twice over. Explain the limits of confidentiality as part of the discussion.
What I would do: correct and re-measure the refraction first - the borderline result may improve with an up-to-date prescription - and refer for cataract surgery, which may restore her to standard. Then explain that her clinical information is private, but a serious risk to other road users is not something I can keep private, and that any report goes to the licensing authority, not to her son.
2. Script how you open and conduct the conversation, including what you say about the collisions, and how you keep her engaged rather than shutting down.
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Open with meaning, not with the standard.
'Before we get to the tests, tell me what driving means for you day to day.' - then listen, because the answer (isolation, caring for a sister, church) is what the rest of the conversation has to respect.
Then be plain and specific: 'Your sight with both eyes is at the borderline for driving, and you've told me about two collisions at junctions in a year. Junction collisions are exactly the pattern we see when side vision and contrast are marginal. That worries me enough that I need to look at it properly rather than just renew your glasses.'
Keep her engaged:
- Avoid catastrophising and avoid false reassurance in equal measure.
- Offer agency: updated spectacles, a cataract referral, a formal driving assessment with an occupational therapist, and information about community transport and any restricted-licence options.
- Explain the sequence: what you will measure, what you will send, who decides, and what she can do in the meantime.
- Agree a follow-up appointment, and ask whether she wants someone with her next time.
Document her concerns and wishes, alongside the objective findings - but note that documenting a wish for secrecy does not change the finding or the duty.
3. She stands up to leave and says she is driving herself home. What do you do?
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This is about immediate risk, not about winning the argument.
- Say clearly and without ambiguity that you think it is unsafe for her to drive today, and why, in one sentence.
- Offer real alternatives: with her consent, telephone her son or another contact; call a taxi and, if cost is the barrier, say so and address it; offer to keep the room available until someone arrives.
- Do not physically restrain her or take her keys - that is not your role and it escalates the situation.
- Document the advice given, the alternatives offered, and her decision, in objective terms.
If she insists and you judge her an immediate danger to others, notifying police is an option, used rarely, explained to her, and documented. It is not a threat to hold over her, and it does not replace the licensing report, which proceeds on its own timeline regardless of what she does in the car park.
Afterwards: send the report to the licensing authority as your provincial regulation requires, keep a copy, and book her review. Debrief yourself - these consultations are emotionally taxing and the documentation burden is real.