Accurate thickness measurement of contact lenses and contact lens molds are critical throughout the manufacturing and QA process to ensure customer acceptance and manufacturing yields. Manufacturing continues to face a workforce shortage of skilled technicians, and traditional contact lens measurement instruments require highly skilled, manual techniques. Non-contact metrology can help to reduce QA labor and increase the profitability of contact lens production.
Accurate contact lens measurement is crucial for ensuring optimal vision and comfort. An effective testing protocol ensures product performance and can prevent issues such as discomfort, dryness, and potential damage to the eye. Properly measured lenses can also significantly improve visual acuity, providing a seamless and natural vision experience.
Poorly fitting lenses can lead to complications like corneal abrasions, infections, and other long-term ocular health issues. Therefore, investing in accurate measurement techniques is vital for both contact lens manufacturers and their customers.
Ophthalmic devices like contact lenses are subject to a number of inspection protocols, as defined by ISO 18369-3 for Ophthalmic Optics, including:
Traditional contact lens measurement methods including thickness gauges often involve manual techniques that rely heavily on the operator's skill and experience. Rehder low force contact measurement gauges and similar drop gauges must touch the lens, deforming the lens and impacting the accuracy of the reading, and require a dry measurement, increasing handling. These methods can be time-consuming and prone to human error, leading to inconsistent results and less-than-ideal lens manufacturing outcomes.
SAG measurements are traditionally done with an optical comparator, by illuminating the lens from the side. These measurements are hard to read, subjective, and require highly trained technicians to get a good focus.
Traditional metrology tools are also limited in their ability to capture detailed measurements. Factors such as corneal curvature, lens thickness, and diameter need precise evaluation to ensure a perfect fit. Conventional methods may struggle to provide the high level of accuracy required, resulting in less effective and potentially uncomfortable lens fittings. Digital, detailed measurements from non-contact thickness gauges like the OptiGauge II can also help seamlessly meet the requirements of traceability for medical device manufacturers.
The OptiGauge II brings a revolutionary approach to contact lens measurement using advanced low-coherence interferometric technology. This device offers unparalleled precision, capturing detailed contact lens measurements in real-time.
Unlike traditional methods, OptiGauge II minimizes the risk of human error and delivers consistent, reliable results. Its high-resolution measurements allow for a comprehensive lens analysis, ensuring optimal comfort and vision quality. This innovation represents a significant leap forward in the field of contact lens manufacturing, providing both manufacturers and patients with a superior contact lens solution.
Accurate contact lens measurements significantly enhance patient satisfaction by providing lenses that fit perfectly, ensuring both comfort and optimal vision. Patients are more likely to experience fewer complications and higher overall satisfaction with their contact lenses.
Meet the Optigauge II: Watch the demo or discuss how it may fit in your manufacturing process