Compatibility Specifically designed to fit Holbrook RX OX8156 54mm version (54 mm lens size). Key benefits — why you need these lenses Improved visual clarity: Tint optimization adjusts lens tint and contrast to deliver clearer, more accurate vision across varying light conditions. Reduced eye fatigue: Antifatigue technology lowers visual strain during extended wear, helping you stay comfortable when reading, driving, or working on screens. Greater durability and safety: Increased lens thickness enhances impact resistance for better protection during active use. Longer-lasting finish: Lenses are treated for scratch resistance and improved resistance to saltwater corrosion, extending usable life in marine and coastal environments. Features and performance Function: Optical replacement lenses intended for use with the Holbrook RX OX8156 54mm frames. Size: 54 mm lens diameter to match the specified Holbrook RX model. Construction: Thicker lens profile for added impact resistance while maintaining optical integrity. Surface treatment: Enhanced scratch resistance and saltwater corrosion resistance to preserve clarity and appearance over time. Comfort: Antifatigue technology is integrated to reduce visual and eye strain during prolonged activities. Practical use scenarios Driving: Tint optimization increases contrast and reduces distraction from changing light, making long commutes and nighttime driving more comfortable. Boating and coastal use: Thicker lenses plus saltwater-corrosion-resistant treatment provide durability and sustained performance in marine environments. Daily work and screen time: Antifatigue technology helps reduce eye strain during extended computer use, reading, or desk work. What to expect A direct replacement for the Holbrook RX OX8156 54mm lenses that prioritizes clearer vision, reduced eye fatigue, and increased durability without changing frame fit or function.