The formal notification required to register as “severely” sight impaired is a Certificate of Vision Impairment (CVI(W)) signed by a Consultant Ophthalmologist.
Yr hysbysiad ffurfiol sy’n ofynnol er mwyn cofrestru fel unigolyn â nam “difrifol” ar y golwg yw Tystysgrif Nam ar y Golwg (CVI(W)) wedi'i llofnodi gan Offthalmolegydd Ymgynghorol.