High-Index (1.67) - Thinner and Lighter:
Recommended For Less Than +/-7.00 Prescriptions
High-index lenses are significantly thinner and lighter than both standard and mid-index lenses. They provide a sleeker, more attractive appearance. Comfort and Aesthetics: The reduced lens thickness of high-index lenses makes them comfortable to wear and minimizes the "bug-eye" effect often associated with strong prescriptions. Frame Compatibility: High-index lenses work well with a variety of frame styles, including rimless and semi-rimless designs, where thinner lenses enhance the overall look.
Ultra High Index (1.74) - Maximum Thinness and Lightness:
Ultra high-index lenses offer the highest level of thinness and lightness, ideal for individuals with extremely strong prescriptions. Sleek and Invisible Appearance: Due to their minimal thickness, ultra high-index lenses provide a nearly invisible appearance, giving wearers a natural look and reducing the distortion caused by thicker lenses.
Enhanced Comfort: Ultra high-index lenses significantly reduce the weight of the glasses, offering exceptional comfort even for those with high prescriptions.