The amounts in column 3 above and in paragraph 4(a) and (b) of these Notes shall be increased as follows:—
(a) by £3.50 in respect of each single vision lens containing a necessary prism;
(b) by £4.50 in respect of each other lens containing a necessary prism;
(c) by £1.75 in respect of each necessary single vision tinted lens;
(d) by £2.25 in respect of each necessary other tinted lens;
(e) by £30.00 in respect of glasses for a person the distance between the centres of whose pupils is 60 millimetres or less;
(f) where the voucher is issued by a Health Board (in connection with the hospital eye service), by £1.75 in respect of each necessary single vision photochromic lens, and by £2.25 in respect of each necessary other photochromic lens;
(g) where the voucher is issued by a Health Board (in connection with the hospital eye service), by £30.00 in respect of glasses the frame of which is certified by the Health Board as being required to be specially manufactured on account of the patient’s facial characteristics.