Image blur resulting from dispersion in polycarbonate


Visual acuities were measured through a series of prisms in order to quantify the blur that results from dispersion in polycarbonate. The mean VA of forty eyes declined from 20/13 unaided to 20/31 through 16 prism diopters of polycarbonate. The decline was a linear function of prismatic power. The blurring effect of polycarbonate was significantly greater than that of CR39. The blur from polycarbonate was found to be great enough that it should be taken into account whenever polycarbonate is considered for spectacle lenses. Graphical displays are provided which can be used by the clinician to predict the degree of blur from a known polycarbonate lens

Similar works

Full text



Provided a free PDF
oaioai:commons.pacificu.edu:opt-1309Last time updated on 7/9/2019View original full text link

This paper was published in CommonKnowledge.

Having an issue?

Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.