“The doctors decided that in order for Angharad to be able to keep her light perception, they would need to insert a mechanical valve in her eye to lower the pressure.
“Er mwyn i Angharad allu cadw ei chanfyddiad o olau, penderfynodd meddygon y byddai angen iddyn nhw fewnosod falf mecanyddol yn ei llygad i leihau'r pwysedd.