LUAR BIASA! PROSES PEMBUATAN SOFTLENS ATAU LENSA KONTAK DI PABRIK MODERN

Summary

This video explores the evolution and manufacturing process of contact lenses. It explains how glasses help correct vision for nearsighted and farsighted individuals, then introduces modern contact lenses as a more flexible, natural, and comfortable alternative. The video details the production process in a modern factory, from precise eye measurements and digital machining of polymer discs, to polishing, hydration, and rigorous optical testing. It highlights the transformation of rigid early lenses into today’s soft, breathable hydrogel and silicone lenses, emphasizing quality, comfort, and efficiency. The video demonstrates how nearly 1,000 lenses can be produced daily, turning small colored discs into life-changing optical devices.

Takeaways

• 😀 Contact lenses are used to correct vision issues like nearsightedness (myopia) and farsightedness (hypermetropia), improving daily activities and safety.
• 😀 Glasses, used since the 13th century, are now being replaced by contact lenses, which offer more natural vision and a wider field of view.
• 😀 Contact lenses were first developed in the late 19th and early 20th centuries, evolving from rigid lenses to more flexible, gas-permeable versions.
• 😀 Modern contact lenses are made from materials like hydrogel and silicone, providing greater comfort and flexibility compared to early rigid lenses.
• 😀 Contact lenses come in two types: hard lenses made from polymethyl methacrylate (PMMA) and soft lenses made from hydrogel and silicone.
• 😀 The production process begins with precise eye measurements, including lens power, cornea thickness, and eye shape, done by an expert.
• 😀 After measurements, data is sent to a digital lathe machine, which shapes the lens's inner curvature at high speeds using a diamond cutting tool.
• 😀 Polishing the inner surface of the lens with fine abrasive paste ensures the lens is smooth, comfortable, and free from imperfections.
• 😀 The outer surface of the lens is then shaped and polished to a precise thickness, ensuring comfort and optical performance.
• 😀 After the lenses are shaped, they are hydrated in a balanced saline solution for 24 hours, expanding to the desired size and flexibility.
• 😀 Final quality checks include optical topography to ensure correct power distribution and focus, followed by sterilization and packaging for delivery.

Q & A

What vision problems can be corrected using glasses or contact lenses?

Glasses or contact lenses can correct myopia (nearsightedness) and hypermetropia (farsightedness) by helping focus light properly onto the retina.

How do contact lenses differ from traditional glasses in terms of vision experience?

Contact lenses are thin, flexible, and sit directly on the eye, moving with it. They provide a wider field of vision and a more natural view without the interference of frames.

When were contact lenses first developed, and what materials are used in modern versions?

Contact lenses were first developed in the late 19th and early 20th centuries. Modern lenses are typically made from hydrogel and silicone hydrogel, making them flexible and gas-permeable.

What are the main types of contact lenses based on materials?

There are two main types: hard lenses made from polymethyl methacrylate (PMMA) and gas-permeable materials, and soft lenses made from hydrogel or silicone hydrogel.

What measurements are required before manufacturing a personalized contact lens?

Measurements include lens power, corneal thickness, and cornea diameter. These must be conducted by an eye specialist using precise equipment.

How does the computer-controlled lathe contribute to contact lens manufacturing?

The lathe shapes the inner curvature of the lens to match the cornea using high-speed diamond cutting, ensuring smoothness and precision for comfort and vision accuracy.

What steps ensure the comfort of a contact lens?

Comfort is ensured by polishing the inner and outer surfaces, controlling lens thickness, and hydrating the lens in a balanced saline solution for flexibility.

What is the purpose of the hydration process in contact lens production?

Hydration allows the lens to absorb liquid, become flexible, and reach its intended size and shape for comfortable wear.

How is the quality of a contact lens verified before packaging?

Quality is verified using optical topography to check optical power distribution and Fonto focus measurement to confirm lens alignment, ensuring accurate vision correction.

What is the final step in preparing contact lenses for consumer use?

Lenses are cleaned, placed in saline-filled bottles, sealed with silicone or aluminum caps, and sterilized at 121°C for one hour to remain sterile for up to seven years if unopened.

How efficient is modern contact lens production in terms of speed and volume?

The production process, excluding hydration, takes about 15 minutes per lens, allowing nearly 1,000 lenses to be produced per day from small colored polymer discs.