Hydrolens 60 % is manufactured to ensure a strong, clear lens which resists discolouration. Sometimes patients will need soft lenses which are outside the range of stock parameters; high powers, large or small diameters and steep or flat base curves.
A graduated aspheric lenticular zone ensures minimum overall thickness in any power. Every prescription is optimised for handling characteristics and oxygen transmissibility using a computerised lens design facility. Computer controlled lathes are used for both back and front surface production to ensure excellent reproducibility.
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