scholarly journals A 33‐Year‐Old Man with a White Pupil: (Answer on pages 1081–2)

2006 ◽  
Vol 43 (8) ◽  
pp. 1043-1044
Author(s):  
Leejee H. Suh ◽  
Daniel A. Sweeney ◽  
Albert S. Jun
Keyword(s):  
White Pupil

The high-resolution cross-dispersed echelle white-pupil spectrometer of the McDonald Observatory 2.7-m telescope

1995 ◽  
Vol 107 ◽  
pp. 251 ◽  
Author(s):  
Robert G. Tull ◽  
Phillip J. MacQueen ◽  
Christopher Sneden ◽  
David L. Lambert
Keyword(s):  
High Resolution ◽  
White Pupil

Eye With White Pupil

2005 ◽  
pp. 159-166
Author(s):  
Carol L. Shields ◽  
Jerry A. Shields
Keyword(s):  
White Pupil

A Child With a White Pupil

JAMA ◽  
2014 ◽  
Vol 311 (17) ◽  
pp. 1799 ◽  
Author(s):  
Najim Lahrouchi ◽  
Machteld I. Bosscha ◽  
Annette C. Moll
Keyword(s):  
White Pupil

scholarly journals SHAPU: Forty years on Mystery Persists

2017 ◽  
Vol 9 (1) ◽  
pp. 13-16 ◽  
Author(s):  
Madan P Upadhyay ◽  
Bharat R Shrestha
Keyword(s):  
Anterior Chamber ◽  
Aqueous Humor ◽  
Posterior Segment ◽  
The Other ◽  
Eye Disease ◽  
Rapid Loss ◽  
Inflammatory Eye Disease ◽  
Fungal Organisms ◽  
Shallow Anterior Chamber ◽  
White Pupil

In 1975, our team encountered several cases of severe inflammatory eye disease presenting as a white pupil in a red eye with rapid loss of vision. The eyes became soft within a few days with shallow anterior chamber which we called “Malignant Hypotension” in view of the latter’s sinister significance. Unilaterally, little or no pain, predominantly affecting children and difficulty in dilating the pupil and keeping it dilated were some of the other important features. Posterior segment was not visible due to massive exudation in vitreous. Microbiological investigations of aqueous humor did not retrieve any bacterial or fungal organisms. All eyes became pthisical in few weeks despite treatment with topical and subconjunctival antibiotics and steroids. Similar cases appeared again after two years in 1977 with identical presentation and outcome. Both out breaks began during September and lasted until about January- the next year. 

scholarly journals DESCRIPTION OF A NEW SPECIES OF CHIONOBAS FROM BRITISH AMERICA

1885 ◽  
Vol 17 (4) ◽  
pp. 74-75
Author(s):  
W. H. Edwards
Keyword(s):  
Dead Leaf ◽  
Costal Margin ◽  
Small Patch ◽  
British America ◽  
Black Spots ◽  
Brown Band ◽  
Orange Color ◽  
A New Species ◽  
White Pupil ◽  
Interior Side

MALE.—Expands 2.2 to 2.4 inches.Upper side brown-orange, color of C. Californica Boisd.; occasional examples are dark, a dead-leaf-brown over whole surface; hind margins edged by a blackish border, of nearly equal width throughout, and extending to apex of primaries; but sometimes this border is widest on primaries; costa of primaries dark brown; in some examples this shade scarcely if at all crosses costal nervure, in others it encroaches on the cell more or less, and occasionally covers the whole cell; but in nearly all examples under view the cell is concolored with rest of wing; the oblique discal brown band, which is a conspicuous feature in the males of the allied species, does not appear in the present one, so far as the examples show; the coloration of the upper surface resembles that of the female of Californica; on secondaries, the costal margin is edged with brown, and just outside the end of cell is an expansion of this, which forms a large elongated patch, convex on interior side—not at all like the sub-triangular and small patch seen in Californica and Iduna; primaries have a black ocellus, rounded or oval, with white pupil on upper discoidal interspace, and a second on second median interspace, the last one usually blind, but sometimes pupillated; generally the lower ocellus is smallest, but occasionally is equal to the upper; one example under view has two additional black spots, as large as the ocellus on secondaries, one on the interspace next above each ocellus; another has mere points on these interspaces; secondaries have a small ocellus, either blind or with white pupil, in second median interspace; fringes of both wings alternately yellow white and brown-black.

scholarly journals A 33‐Year‐Old Man with a White Pupil

2006 ◽  
Vol 43 (8) ◽  
pp. 1081-1082
Author(s):  
Leejee H. Suh ◽  
Daniel A. Sweeney ◽  
Albert S. Jun
Keyword(s):  
White Pupil

scholarly journals Female Bicyclus anynana butterflies choose males on the basis of their dorsal UV-reflective eyespot pupils

2005 ◽  
Vol 272 (1572) ◽  
pp. 1541-1546 ◽  
Author(s):  
Kendra A Robertson ◽  
Antónia Monteiro
Keyword(s):  
Sexual Selection ◽  
Natural Selection ◽  
Female Choice ◽  
Predator Avoidance ◽  
Butterfly Species ◽  
Wing Pattern ◽  
Bicyclus Anynana ◽  
Wing Patterns ◽  
Male Wing ◽  
White Pupil

Sexual and natural selection pressures are thought to shape the characteristic wing patterns of butterfly species. Here we test whether sexual selection by female choice plays a role in the maintenance of the male wing pattern in the butterfly Bicyclus anynana . We perform one of the most extensive series of wing pattern manipulations in butterflies, dissecting every component of the ‘bulls-eye’ eyespot patterns in both ventral and dorsal wing surfaces of males to test the trait's appeal to females. We conclude that females select males on the basis of the size and brightness of the dorsal eyespot's ultraviolet reflecting pupils. Pupil absence is strongly selected against, as are artificially enlarged pupils. Small to intermediate (normal sized) pupils seem to function equally well. This work contradicts earlier experiments that suggest that the size of dorsal eyespots plays a role in female choice and explains why male dorsal eyespots are very variable in size and often have indistinct rings of coloration, as the only feature under selection by females seems to be the central white pupil. We propose that sexual selection by female choice, rather than predator avoidance, may have been an important selective factor in the early stages of eyespot evolution in ancestral Lepidopteran lineages.

scholarly journals iSHELL: a 1–5 micron R = 80,000 Immersion Grating Spectrograph for the NASA Infrared Telescope Facility

2022 ◽  
Vol 134 (1031) ◽  
pp. 015002
Author(s):  
John Rayner ◽  
Alan Tokunaga ◽  
Daniel Jaffe ◽  
Timothy Bond ◽  
Morgan Bonnet ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Infrared Telescope ◽  
Telescope Facility ◽  
Nasa Infrared Telescope Facility ◽  
Infrared Telescope Facility ◽  
Case Design ◽  
White Pupil ◽  
Design Construction

Abstract iSHELL is a 1.06–5.3 μm high spectral resolution spectrograph built for the 3.2 m NASA Infrared Telescope Facility (IRTF) on Maunakea, Hawaii. Dispersion is accomplished with a silicon immersion grating in order to keep the instrument small enough to be mounted at the Cassegrain focus of the telescope. The white pupil spectrograph produces resolving powers of up to about R ≡ λ/δλ = 80,000 (0.″375 slit). Cross-dispersing gratings mounted in a tiltable mechanism allow observers to select different wavelength ranges and, in combination with a slit wheel and Dekker mechanism, slit widths ranging from 0.″375 to 4.″0 and slit lengths ranging from 5″ to 25″. One Teledyne 2048 × 2048 HAWAII-2RG array is used in the spectrograph, and one Raytheon 512 × 512 Aladdin 2 array is used in a 1–5 μm slit viewer for object acquisition, guiding, and scientific imaging. iSHELL has been in productive regular use on IRTF since first light in 2016 September. In this paper we discuss details of the science case, design, construction and astronomical use of iSHELL.

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