Basic lenses suitable for mild prescriptions, offering affordability and durability.Low-index lenses are standard options for mild to moderate prescriptions, balancing cost-effectiveness with functionality. These lenses are typically made from materials like CR-39 plastic, offering good optical quality at a lower price point. While thicker than high-index alternatives, they remain suitable for many wearers with lower prescription strengths. Low-index lenses are often more impact-resistant and scratch-resistant than their high-index counterparts, making them a practical choice for everyday use or as backup pairs.
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