Abstract: Combination safety glasses having frame lens openings fitted with non-correcting safety lenses. Raised portions from the rear of said frame lens openings are of integral, one-piece construction therewith. The raised portions have guide recesses that receive and dispose correcting lenses in parallel relationship with the non-correcting lenses. The correcting lenses are of the full magnifier, full prescription, full bifocal or half prescription type. Opposite ends of the raised portions have nasal-side detents and spring-biased, temporal-side locking detents. The nasal-side detents are of integral, one-piece construction with the raised portions, while the temporal-side locking detents are resilient and have spring biasing actions thereby rendering the locking detents spring-biased. The nasal-side detents engage the correcting lenses.