Tvrda gas-propusna (RGP) kontaktna sočiva Koncepcija

Slide 14
Prvi pravi asferični dizajn tvrdih sočiva
(Feinbloom, 1961)
• Elipsoidna, PMMA, Sfere i Torična
• Uvedena je i oprema za proizvodnju
• Dalji razvoj – Volk.
Volk je postao najizraženiji promoter asferika
(1961 - 1987)
Rigid Gas Permeable Contact Lenses Design
First True Aspheric Hard Lens Design
The first true aspheric hard lens design was by Feinbloom in 1961. His lens was
ellipsoidal and could be fabricated as a lens with either a spherical or a toric Rx. Because
the shapes could not be generated by contemporary equipment, Feinbloom also invented
fabrication machinery for the generation of his lens designs. His pioneering work was
quickly followed by the work of Volk and Neefe. The former then went on to become the
greatest proponent of aspheric lenses for contact lenses and virtually all other clinical
purposes (e.g. field lenses for indirect ophthalmoscopy).
First True Aspheric Hard Lens Design
Prvi pravi dizajn asferičnih tvrdih sočiva je uradio Feinbloom 1961. Njegova sočiva su
bila elipsoidna i mogla su se proizvoditi kao sferična ili torična Rx. Zbog toga što se tada
ta sočiva nisu mogla proizvoditi sa postojećim mašinama Feinbloom je izumeo mašinu za
takva sočiva.Njegov pioniski rad su vrlo brzo pratili Volk i Neefe. Prvi je postao najveći
promoter aaferičnih sočiva i verovatno svih kliničkih primena )tj. Sočiva za indirektnu
oftalmolmoskopiju).