This part of ISO 18369 specifies the tolerance limits of the principal optical and physical parameters of rigid, soft, and rigid scleral contact lenses.
DIN EN ISO 18369-2:2006 history
2018DIN EN ISO 18369-2:2018-04 Ophthalmic optics - Contact lenses - Part 2: Tolerances (ISO 18369-2:2017); German version EN ISO 18369-2:2017
2018DIN EN ISO 18369-2:2018 Ophthalmic optics - Contact lenses - Part 2: Tolerances (ISO 18369-2:2017); German version EN ISO 18369-2:2017
2013DIN EN ISO 18369-2:2013 Ophthalmic optics - Contact lenses - Part 2: Tolerances (ISO 18369-2:2012); German version EN ISO 18369-2:2012
2006DIN EN ISO 18369-2:2006 Ophthalmic optics - Contact lenses - Part 2: Tolerances (ISO 18369-2:2006); English version of DIN EN ISO 18369-2:2006-11