Mini sclera contact lenses are colored contact lenses that cover part of the sclera (the white of the eye). They are not the same as full sclera contact lenses but do have the effect of large eye contacts. The diameter of the lenses varies but tends to be between 15mm and 17mm, which is larger than normal colored contact lenses. In comparison, full sclera contacts are typically 22 mm in diameter, while regular contact lenses range in diameter from 13.8 – 14.5 mm.