Abstract: A multifocal lens 20, 20A, having an upper distance vision power zone 23; a lower near vision power zone 24; an intermediate power zone 25 between the upper distance vision power zone 23 and the lower near vision power zone 24; and an upper near vision power zone 26 above a portion of the upper distance vision power zone 23 are disclosed. The lower near vision power zone 24 extends from the nose side outwardly. The upper near vision power zone 26 extends from the nose side outwardly. Preferably the lower near vision zone 24 extends outwardly and downwardly from the nose side adjacent the intermediate vision zone 25 in a curved path and extends less than 70% across the length of the lens. Similarly the upper near vision zone 26 extends outwardly and upwardly from the nose side adjacent the upper distance vision power zone 23 in a curvilinear path and extends a suitable distance across the entire length of the lens or a part thereof.

Abstract: An inhaler apparatus by which a vapor is condensed by a powder containing medication into a cloud of very fine particles that can be inhaled deep into a patient's lungs. The apparatus includes an enclosure, preferably a transparent container, which enables the patient to observe the formation of the cloud. The cloud is formed because of the provision within the enclosure of the proper pressure, moisture content, temperature, and a dust-like powder that is actually the medication and which seeds the cloud. A heater is placed adjacent a liquid to cause the liquid to heat and vaporize. A small pump reduces the pressure within the container only the amount required to achieve the proper conditions for the cloud formation. A liquid is placed in a liquid containing part of the container.