"Optician's clinic"

Took my son for an eye test today to halliwell health centre, the person testing his eyes was lovely and was very good with my little boy. I was very disappointed though to find that in order for them to properly examine my child's eye they had had to put a black bin liner up in a window and secure it with tape. This was like this on the last visit and I am worried that my child will not get the best possible care or diagnosis due to lack of proper equipment and lighting in that room.