Sebagian Istilah-istilah dalam dunia Optik
OD/R = Oculus Dextra / Right = Mata Kanan
OS/L = Oculus Sinistra / Left = Mata Kiri
OU = Oculus Unistra = Mata Kanan Dan Kiri
Lensa Plus = + = Lensa Cembung
Lensa Minus = – = Lensa Cekung
Dioptri = D = Satuan Kekuatan Lensa
Sphere = S/Sph = Lensa Spheris
Cylinder = C/Cyl = Lensa Cylinder
Axis Cylinder = X = Sumbu Cylinder
Prisma Dioptri = = Satuan Kekuatan Prisma
Base In = B.I. = Arah Tebal dinasal
Base Out = B.O. = Arah Tebal ditemporal
Base Up = B.U. = Arah Tebal diatas
Base Down = B.D. = Arah Tebal dibawah
Addition = Add = Penambahan kekuatan Baca
Base Curve = B.C. = Lengkung Lensa
Centre Thick = C.T. = Tebal Tengah Lensa
Edge Thickness = E.T. = Tebal Tepi Lensa