BS 3521-3:1988
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Terms relating to ophthalmic lenses and spectacle frames Glossary of terms and symbols relating to contact lenses
Hardcopy , PDF
09-07-2003
English
29-02-1988
National foreword
Committees responsible
Glossary
1 Scope
2 Terms and definitions
2.1 General terms
2.2 Scleral lenses and shells
2.3 Bifocal, multi-focal and progressive power lenses
2.4 Contact lens manufacture and materials
Table
Symbols for dimensions
Figures
1 Axial edge lift and radial edge lift
2 Basic optic diameter and back scleral size of
scleral lens
3 Spherical optic with toroidal scleral
4 Toroidal optic with spherical scleral
5 Dimensions of edged scleral lens
Indexes
English alphabetical index
French alphabetical index
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