Table 1.

Reasons for non participation in the study (n = 12).

	Number of patients (%)
Would take too much effort*	5 (41.7)
Seemed to be cognitively unable to participate	3 (25)
Died between the enrolment and the invitation.	1 (8.3)
Patient felt the regular intake process was too slow and only wanted to participate after rehabilitation	1 (8.3)
Patient could not be invited because personal, ophthalmic and/or other medical information was lacking	1 (8.3)
Reason was unclear (the patient's son made the decision)	1 (8.3)

MRC: Multidisciplinary Rehabilitation Centre

* Two (16.7%) of these patients were participating in another study at this MRC