Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Gregory L, Stephens"'
Autor:
Donald D. Pitts, Gregory L. Stephens
Publikováno v:
Optometry and Vision Science. 71:220-225
PURPOSE: Inexpensive transmittance meters have recently been developed for measuring of mean ultraviolet (UV) radiant transmittance and luminous transmittance of spectacle lenses. Our purpose was to determine how accurately these meters measured tran
Autor:
Gregory L, Stephens, David, Perrigin
Publikováno v:
Hindsight (Saint Louis, Mo.). 42(3)
Caecanometry was a short-lived visual fields examination technique first described by Ingwold Davidsen, O.D. in 1949. The technique was based upon the unusual premise that the blind spot constricted in size when certain types of infection were presen
Autor:
Ronald Jones, Gregory L. Stephens
Publikováno v:
Ophthalmic and Physiological Optics. 10:25-28
Horizontal fusional limits and lateral phorias were measured subjectively on five normal subjects after adaptation to increments of base-in and base-out prism. Both the phoria and the fusional limits were found to change by approximately the amount o
Autor:
Gregory L. Stephens
Publikováno v:
Optometry and vision science : official publication of the American Academy of Optometry. 72(8)
Purpose. Impact resistance testing of prescription eyewear and nonprescription sunglasses is normally performed at a drop-ball height of 50 in (1.27 m). This paper presents a statistics-based testing method that uses increased drop-ball heights. Meth
Publikováno v:
Optometry and vision science : official publication of the American Academy of Optometry. 71(10)
Autor:
Gregory L. Stephens
Publikováno v:
Environmental Vision
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f6dfd24511c42cd576b9a725d0736b5
https://doi.org/10.1016/b978-0-7506-9051-5.50017-x
https://doi.org/10.1016/b978-0-7506-9051-5.50017-x
Autor:
Michael Polasky, Gregory L. Stephens
Publikováno v:
Optometry and vision science : official publication of the American Academy of Optometry. 68(11)
The increased popularity of refractive surgery, intraocular lenses, and penetrating keratoplasty has resulted in larger numbers of anisometropes with aniseikonia. We have analyzed the effects of the new high index glass and plastic spectacle lens mat
Publikováno v:
Optometry and Vision Science. 78:96
Autor:
Goss, David A.1 dgoss@indiana.edu
Publikováno v:
Hindsight: Journal of Optometry History. Jan2019, Vol. 50 Issue 1, p4-12. 9p.