Guidelines for referral
The guidelines for receiving counselling from Visio were set in 2011 by the Dutch Ophthalmologic Society.
The guidelines are:
- Vision of 0.3 or less
- Reading vision of 0.25 or less
- Visual field diameter of 30 degrees or less
- A remaining visual field capacity (residual vision) between 0.3 and 0.5 and an assistance issue that cannot be solved (or adequately solved) within the therapeutic possibilities provided by a regular ophthalmologist.
Additionally: Visio does not apply the 0.3 norm in a strict manner. In other words, even if you have doubts, it is always worthwhile to contact Visio.
There are also people who suffer from a neurological disorder, but without any demonstrable visual disability. Following consultations between the referring physician and Visio, they too can often benefit from Visio’s services.