Plastic Glasses Frames

Plastic glasses frames are manufactured through injection moulding. Liquid thermoplastic polymer is injected under pressure into a precision mould and cooled into shape. This process is fast, consistent, and cost-effective. Making injection-moulded plastic frames one of the most affordable and widely available frame types in prescription eyewear.

The result is a frame that is lightweight, produced in high volume, and available across an enormous range of shapes and colours.

Plastic is the practical, affordable choice, while acetate is a step up in quality. The key difference lies in how they’re made. Both come with their own pros and cons.

Plastic frames are injection-moulded from synthetic thermoplastic polymers. This efficient process keeps costs low and produces lightweight, consistent frames. Available in a wide range of styles, making them ideal for everyday wear or multiple pairs. However, it can limit colour depth, surface finish, and adjustability.

Acetate frames are cut from layered sheets of plant-derived cellulose acetate. They are hand-polished to a high quality finish. This creates richer colour, true translucency, and a more premium feel.

They also offer greater durability and can be heat-adjusted by an optician for a precise fit. They are typically slightly heavier and more expensive.

Plastic is the practical, affordable choice; acetate is the step up in quality.

Yes. Modern injection-moulded plastic frames are designed to withstand the demands of daily use. Making them a practical choice for everyday prescription eyewear.

They are typically lighter than acetate or metal alternatives, though the surface may show minor wear over time. With proper care, such as storing them in a hard case and cleaning with a microfibre cloth. Their lifespan can be significantly extended.

Yes. Full-rim plastic frames, in particular thick rim glasses and chunky frames, are a practical choice for stronger prescriptions. The surrounding frame helps conceal lens thickness and draw attention to the frame rather than the lenses. They’re ideal for creating a balanced look while helping you find your perfect pair.

If you have a high prescription our optical team can advise on higher-index lenses to reduce thickness and weight. Ensuring your finished glasses remain comfortable and well-proportioned.

Yes. All Direct Sight plastic glasses frames are available with prescription lenses from as little as £9. Browse our full range online, select your frame, and enter your prescription at checkout.

Our collection includes a wide variety of colours, shapes, and styles. Visit our frame colour guide that will help you determine the right frame colour to suit your skin tone, eye colour, and personal style. From classic neutrals to bold statement shades, plastic frames are typically available in an extensive colour range.

Selected frames and lens options are available for same day dispatch on our next day express service.  With a range of delivery options in check out for fast UK delivery.