The manufacturing of cheap eyeglasses near me lenses is almost complete. But do they meet quality assurance requirements? To ensure this point, each lens is thoroughly inspected before delivery.

Perform a visual inspection to check for dust or damage, and perform a mechanical inspection to ensure that each lens meets the necessary specifications. Is the diopter, axial position, column position, thickness, design, and diameter correct?

If the lenses are flawless, then you can "label" them in the final step. This position mark is used for lens alignment and helps the optometrist accurately insert the lens into the frame. Remove the last pair of cheapest eyeglasses before assigning them to the wearer.

Only when all quality assurance steps are completed and the lenses truly meet the quality standards, the quality commitment is engraved into each lens.

Usually, the optometrist assembles the lens, which is to fit the lens into the frame. However, assemble according to the requirements. This process requires precision, as only the best-assembled lenses can provide perfect vision correction.

Inventory lenses and semi-finished resin lenses are manufactured during the casting process by adding special components (such as those used to improve UV absorption) to liquid materials called monomers. Pour the mixture into the mold, harden, and then machine to reduce residual stress. Afterward, semi-finished lenses can be used.

If it will be used as inventory lenses, a hard coating will be added, and additional coating can be applied if necessary.