A novel multiphase optic lens contains an elastic chamber including a fluid or gel to transfer an eye positioning to a lens shape with a refractive power and visual axis matching an eyes targeting. The elasticity of an anterior wall of the elastic chamber is higher than that of the remainder of the wall of the elastic chamber, particularly in a near reading center at an inferior area toward the nose. A near response is achieved when the anterior wall is pushed anteriorly by the fluid or gel to form a protrusion when a user is looking downward and toward the nose, and vice versa for far response. A balance is achieved when the chamber is substantially perpendicular to horizon when a user is looking forward. This multiphase lens may be made in situ by laser. The method is useful for intraocular lens, nose/ear-free eyewear, and macular protection.
