At Avisia, we proud ourselves in our coating center allowing us to offer your patient Crizal Alizé lenses. With a highly transparent Avisia AR coating and a super tough anti-scratch coat, we offer you solutions for each of your patients...
Let us introduce you to Crizal Alizé...
Thanks to a new process that makes the lens surface totally smooth, impurities can no longer stick to the lens, so it retains its original clarity. The means for your patients: clearer lenses, less frequent cleaning, and less effort when cleaning the lenses. The low surface energy created by the coating increases the contact angle of the lens so much that the area occupied by dirt particules is three times smaller than on a standard anti-reflective coating.
Contact angle of drop of Water
The more the water droplet beads up, the better the cleanability.
Crizal Alizé 112 deg / Crizal 204 / Standard AR coating : 30
Crizal Alizé lenses include Essilor’s third generation hydrophobic and oleophobic technology combined with Crizal's unbeatable durability. This third generation technology provides a noticeable improvement in lens cleaning and makes surface dirt less visible.
• The distinctive feature of this lens is the Pad Control System™. This system employs a temporary Pad Control Layer that assists with the edging process. This layer provides the adhesion required to block the lens for edging, grooving, drilling and retouching.
• The Pad Control Layer gives Crizal Alizé a blue residual color. See picture for color appearance. After removing this temporary Pad Control Layer with a soft cloth, the lens will have the original Crizal green reflection.
1 Lens handling
Perform cosmetic inspections on lenses upon receipt into Finishing.
DO NOT clean or remove the Pad Control Layer before lens blocking.
The Crizal Alizé lens must keep its Pad Control Layer on both lens surfaces during edging, grooving, drilling and retouching.
Lenses should be handled by the edges only, avoiding all finger or hand contact with the lens surface.
2 Lens blocking
• Ensure the block is dry and clean.
• Do not touch the block adhesive.
• Apply the adhesive to the block.
• Improper handling may cause block slippage during the edging process
• Select the material option that corresponds to the lens to be edged.
3 Lens edging
• Place the blocked lens in the edger, making sure not to touch the lens
• surface. Begin the edging cycle.
• Once the edging cycle is completed, make sure to remove the edged
• lens without touching its surface.
4 Lens mounting
Verify lens fit before removing the edging block. Once removed, the edging block cannot be reapplied.
Before mounting the lens in the frame:
Remove the blue Pad Control Layer from the lens surfaces with a soft cloth.
When edging rimless lenses, it is recommended to mark the drilling points with an approved permanent marker. (Recommend Staedtler Lumocolor #317)
5 Final cleaning
Once again, verify that the Pad Control Layer has been completely removed by wiping both lens sides at the same time. See picture at right. This is evident by the removal of the blue reflection from the lenses (mild detergent and water may be necessary).
6 Cosmetic inspection
After mounting and final cleaning be sure to perform
a final inspection.
7 Progressive lens remarking:
• Locate the progressive engravings
• Using the recommended marking pen (Staedtler Lumocolor #317)
• mark the center of the engraved markings.
• Apply the appropriate mask to align with the markings.
• When finished fitting, remove the mask. The ink marks can be removed by one of two ways: 1) Use a piece of tape and apply it over the ink marks. Then pull off the tape. 2) The ink can be removed by gently pushing it off with your fingernail.