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Frequent Asked Questions

1) Regarding the follow up LVA appointment, how early or late can this be?

2) A patient is undecided about the study and I am going to call them back in a week to see if they want to take part. Would you like the CRF 1 sent now or once I have spoken to them?

3) A patient doesn't want to complete the pre-assessment questionnaire, what should I do?

4) I'm booked to do a domiciliary visit to a patient's house. Do I include this as part of DEPVIT?

5) If a patient has been to a Low Vision assessment and is on a waiting list for a trial of a magnifier, and then comes back for an appointment for the magnifier do they need to complete a questionnaire?

6) Does 'time since vision loss' refer to one or eye or both eyes?

7) If I attend a domiciliary eye test and it turns out the patient needs an LVA, can I give them information leaflet and questionnaire there and then?

8) If the patient has not filled in the questionnaire when they arrive, they can't complete it alone and there is no one free to help them, can I do the LVA then ask them to bring the questionnaire back later in the week?



1) Regarding the follow up LVA appointment, how early or late can this be?


The protocol states that the follow up is 6 weeks after the patient's Low Vision assessment. In practice it will be difficult to get exactly to the day - ideally we would like the appointment to be within one week either side of this date ie. no more than a week before or a week after the 6 week date. If it is impossible to do this, please still carry out the follow up. If the patient cancels then you can try re-booking one more time.


2) A patient is undecided about the study and I am going to call them back in a week to see if they want to take part. Would you like the CRF 1 sent now or once I have spoken to them?


It is best if you keep the CRF1 until you have spoken to them, then fax it to me with the appropriate consent form. There is a space on the form in Part C to enter the date you called them back and you can then tick 'yes' or 'no' to whether they want to take part.


3) A patient doesn't want to complete the pre-assessment questionnaire, what should I do?


If the patient feels that they don't want to complete it because they are not depressed, you could try explaining that we still need this information as we are trying to determine the number of people who are or are not depressed so their information is important. If they still decline then we must accept that decision and continue care as normal. So that we can record how often this happens, please fax the first page of a blank CRF1 and write 'declined questionnaire' across the top.


4) I'm booked to do a domiciliary visit to a patient's house. Do I include this as part of DEPVIT?


Yes, we are looking at all consecutive referrals to the Low Vision service so please do include home visits.


5) If a patient has been to a Low Vision assessment and is on a waiting list for a trial of a magnifier, and then comes back for an appointment for the magnifier do they need to complete a questionnaire?


Yes, again as we are looking at all consecutive referrals to the Low Vision service we need to screen them. If they are depressed they may then be excluded from taking part in the trial in Part B because it is not 12 months since their last LVA. However, it is important that we find out whether they are depressed, even if they can't take part in the trial. If they are depressed but need to be ecludded, you should ask if they would like a GP referral. The same applies to people who come back for another LVA within the life of the trial - they would need another questionnaire.

6) Does 'time since vision loss' refer to one or eye or both eyes?


Both eyes - the time since the patient became visually impaired.


 7) If I attend a domiciliary eye test and it turns out the patient needs an LVA, can I give them information leaflet and questionnaire there and then?


Ideally we would ask that you book the LVA for another day and give them the questionnaire and information leaflet to read in the mean time. If this is not practically or financially viable, we would ask that you DO NOT give the patient the questionnaire as they will not have received the patient information leaflet and had a week to read through it, as requested by the ethics committee. Instead please fax us the first page of a blank CRF 1 and write a brief explanation of the situation across the top, so we know how often this occurs.


 8) If the patient has not filled in the questionnaire when they arrive, they can't complete it alone and there is no one free to help them, can I do the LVA then ask them to bring the questionnaire back later in the week?


This does not follow the protocol and therefore is not ideal. There is also a chance that having the LVA would affect their questionnaire responses. Please try to minimise the number of times this happens by stressing the importance, either by phone or letter,  of completing the questionnaire before their assessment.