![]() ![]() Upon selecting your frame, several measurements will be taken. The wearer’s eye and facial features are also taken into consideration. Single-vision lenses and progressive lenses can be designed using free-form technology. Think of it as fine-tuned digital lens production. This process of designing and surfacing is more precise compared to conventional lens making as it works with 0.01 dioptre power increments rather than the conventional 0.25 dioptre increments. The process involves a high-level of computer-aided design and surfacing to produce lenses for a specific prescription and frame. The free-form technology manufactures digitally customized lenses. This is the most popular type of high-definition lenses. Reason behind is that the difference might not be significantly noticeable compared to those who are using stronger corrections. People who have mild prescriptions and/or having good quality 20/20 vision with their glasses might not benefit much from these more expensive lenses. Smooth zone-to-zone transition for progressive lensesĪnyone can opt for HD lenses and can benefit to a certain extent. ![]() Highly optimized digital lenses for every prescription.What High definition lenses promise to offer: HOAs are associated with blurry vision, poor contrast, ghost images, poor night vision, halos, starbursts and glares. This is the kind of situation that is encountered by people with higher-order aberrations (HOAs) or complex vision errors. And despite of a 20/20 vision they might still complain of poor quality vision. Now imagine this digital power being imbued in the technology of your very own eyeglasses.Ĭlients coming in eye centers or optical shops for corrective glasses sometimes verbalize dissatisfaction with their treatment. When we hear of HD TV, we have the idea that this kind of television has better resolution than the standard TVs. HD television, HD video, HD audio, HD photo, and so on. “HD”, “Hi-Def” or “High Definition” has been attached to every word that technological advancement brought for the audio-video systems. ![]()
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