80% say they did not have eye problems, 8% had not thought about getting an eye test, 3% say appointments were not available and 2% do not feel safe to go.
Dywedodd 80% nad oedd ganddynt broblemau llygaid, nid oedd 8% wedi meddwl am gael prawf llygaid, dywedodd 3% nad oedd apwyntiadau ar gael ac nid yw 2% yn teimlo'n ddiogel i fynd.