A novel frame construction for eyeglasses is provided wherein the upper frame member is formed to have greatly enhanced flexibility to increase the overall adjustability, comfort and fit of the eyeglasses. The upper frame member includes areas wherein the material is selectively weakened to create predetermined flex points periodically within the frame member. Additionally, the weakened areas may be filled and/or covered with a second material that is more flexible than the base material used to form the frame member. The enhanced flexibility allows the upper frame member to flex as the temple members of the eyeglasses are stretched outwardly providing a comfortable fit for a wide range of wearers. Further, the top edge of the eyeglass lens may include formations that provide clearance for the deflection of the top frame member.