Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Monica Howland"'
Autor:
Howard C. Howland, Monica Howland
Publikováno v:
Vision Research. 48:1926-1927
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::449bb4cc8c6f6491d73e6ae6a4204cb0
https://doi.org/10.1016/j.visres.2008.06.002
https://doi.org/10.1016/j.visres.2008.06.002
Publikováno v:
Journal of comparative physiology. A, Sensory, neural, and behavioral physiology. 170(6)
Brown kiwis are an endangered species of nocturnal, flightless birds which are native to New Zealand. The resting focus of two specimens has previously been studied by retinoscopy in a zoo while the birds were restrained by their keeper (Sivak and Ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72e338f74c6a20ca9c761c8656a9e1f9
https://pubmed.ncbi.nlm.nih.gov/1432849
https://pubmed.ncbi.nlm.nih.gov/1432849
Publikováno v:
Journal of Comparative Physiology A. 170
Photorefraction and photokeratometry were performed on two juvenile tuatara (Sphenodon punctatus, 7 years of age, total length approx. 27 cm). Sphenodon is the only surviving genus of the Rhynchocephalia, an order of reptiles. Both existing species a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c663dc0406cee5cdc7099210bc08a43a
https://doi.org/10.1007/bf00191413
https://doi.org/10.1007/bf00191413
Publikováno v:
Vision Research. (2):169-174
We employed neutralizing infrared videophotorefraction and photokeratometry to examine the manifest refractions and corneal curvatures of 21 species of anurans (frogs and toads) in five families (Dendrobatidae, Bufonidae, Centrolenidae, Leptodactylid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e469178602e8e2ede212d0319778313
Autor:
Robert E. Hueter, Monica Howland, Jacob G. Sivak, Christopher J. Murphy, Joanne R Paul-Murphy, Howard C. Howland
Publikováno v:
Vision Research. (15):1885-1889
Optical measurements of the refractive state of the eyes of various shark species typically have depicted sharks as hyperopic (far-sighted) with little evidence of accommodation (i.e. the ability to change focus for visualizing objects at different d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::389727a7cb34b5c1b0c4e41a68e3ffa3
Publikováno v:
Journal of Comparative Physiology A. 163:441-443
Crocodilians are amphibious reptiles which hunt prey both on land and in water. Previous refractive and anatomical studies have suggested that their eyes can focus objects in air and that their ability to refocus the eye underwater may be limited. Ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd6f7ddf6feb34f20a6eff0227e989b0
https://doi.org/10.1007/bf00604898
https://doi.org/10.1007/bf00604898
Publikováno v:
Vision Research. (9):1153-1155
The presence of lower-field myopia (described in chickens, pigeons, quail and amphibians) allows these animals to keep the ground in focus while performing other visual tasks. A relationship has also been reported between the eye height and the degre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::238e1ac4f1527fe4c211cfb0160bfc73
Publikováno v:
American journal of optometry and physiological optics. 64(2)
A simple pointspread retinoscope and method of retinoscopy are described which use optical principles similar to those of photoretinoscopy or static photographic skiascopy. In this instrument the degree of defocus of an eye is estimated from the disa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad3eae32b82f66a18b856892261fef96
https://pubmed.ncbi.nlm.nih.gov/3826285
https://pubmed.ncbi.nlm.nih.gov/3826285