erikoislasit

Erikoislasit (Finnish for “special glasses”) are eyewear designed to meet specific tasks, environments, or visual requirements beyond ordinary vision correction. They can be prescription or non-prescription and may combine protective functions with optical performance.

Common categories include protective eyewear for work and sports, such as safety glasses and goggles that shield the eyes from debris, chemicals, impacts, or radiation. Occupational lenses may feature prism elements for alignment, reading aids for near work, or targeted tints to improve contrast in certain lighting. Sports-oriented styles provide enhanced wraparound coverage, polarized or tinted lenses, and impact resistance. In everyday use, special coatings and technologies are applied to standard lenses, including photochromic (light-adaptive) lenses, polarized filters, blue-light filtering, anti-reflective coatings, and scratch or anti-fog finishes.

Materials used in erikoislasit vary with purpose. Common lens materials include polycarbonate and high-index plastics for impact resistance and thinness, with glass used in some high-clarity applications. Frame designs range from lightweight safety frames to sport-specific or fashion-oriented options. Many erikoislasit are custom-made to match a user’s prescription or occupational needs, occasionally combining multiple features in a single lens.

Standards and safety considerations are important with erikoislasit. In Europe, eye protection products typically conform to EN standards (for example EN 166 for eye protection and EN 170/172 for filters), while other regions may follow ANSI or local regulations. Correct selection depends on the intended use, fit, and comfort, and proper care—regular cleaning, safe storage, and avoiding harsh chemicals—helps preserve performance.

See-also: ophthalmic lenses, safety eyewear, coatings and lens technologies.