Night Sight HD Glasses are top quality, high definition optics. These glasses have high definition color, clarity and contrast. The special anti-glare lenses found in HD Night Vision Glasses reduce eye strain and glare from headlights, streetlights and traffic lights in wet or dark conditions. They can fit over your prescription eyeglasses and are small enough to fit into a shirt pocket or a tiny purse. They are perfect for for night time driving or driving in the rain or snow. They are lightweight and great for both men and women!