Why Japanese four-star cranberry old glasses are expensive

High quality. As a high-grade brand of presbyopia glasses, the Japanese four-star Crane red old glasses have higher quality lenses, use better materials, higher light transmission, clearer and more transparent lenses, which can effectively alleviate the visual fatigue brought about by presbyopia and dizziness and blurred vision, etc., and are very expensive due to their high quality. The manufacture of four-star cranberry old glasses is very complex, requiring the use of high-precision processing equipment and technology, the production process requires a number of links for testing and quality control, and the production cycle is longer than the general presbyopia glasses, so the cost is relatively high.