scholarly journals Optical treatment of strabismic amblyopia

2019 ◽  
Vol 39 (5) ◽  
pp. 309-312 ◽  
Author(s):  
Paul V McGraw ◽  
Brendan T Barrett ◽  
Tim Ledgeway
Keyword(s):  
Strabismic Amblyopia ◽  
Optical Treatment

The Theoretical Contrast in Scanning and Conventional High Resolution Microscopes

1969 ◽  
Vol 27 ◽  
pp. 170-171
Author(s):  
E. Zeitler ◽  
M. G. R. Thomson
Keyword(s):  
Small Volume ◽  
Volume Element ◽  
Optical Processing ◽  
Image Construction ◽  
Object Interaction ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Optical Treatment ◽  
Electron Microscopes ◽  
Intensity Contrast

In the formation of an image each small volume element of the object is correlated to an areal element in the image. The structure or detail of the object is represented by changes in intensity from element to element, and this variation of intensity (contrast) is determined by the interaction of the electrons with the specimen, and by the optical processing of the information-carrying electrons. Both conventional and scanning transmission electron microscopes form images which may be considered in this way, but the mechanism of image construction is very different in the two cases. Although the electron-object interaction is the same, the optical treatment differs.

Chromatic aberration and low-voltage SEM

1987 ◽  
Vol 45 ◽  
pp. 546-547
Author(s):  
Zhifeng Shao ◽  
A.V. Crewe
Keyword(s):  
Electron Energy ◽  
Low Voltage ◽  
Spherical Aberration ◽  
Chromatic Aberration ◽  
Primary Electron ◽  
Probe Size ◽  
Non Local ◽  
Optical Treatment ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes

For scanning electron microscopes, it is plausible that by lowering the primary electron energy, one can decrease the volume of interaction and improve resolution. As shown by Crewe /1/, at V0 =5kV a 10Å resolution (including non-local effects) is possible. To achieve this, we would need a probe size about 5Å. However, at low voltages, the chromatic aberration becomes the major concern even for field emission sources. In this case, δV/V = 0.1 V/5kV = 2x10-5. As a rough estimate, it has been shown that /2/ the chromatic aberration δC should be less than ⅓ of δ0 the probe size determined by diffraction and spherical aberration in order to neglect its effect. But this did not take into account the distribution of electron energy. We will show that by using a wave optical treatment, the tolerance on the chromatic aberration is much larger than we expected.

Color and Luminance Contrast Sensitivity Changes in Early- and Late-Onset Strabismic Amblyopia

2006 ◽  
Vol 10 (1) ◽  
pp. 81
Author(s):  
John J. Sloper ◽  
Alison R. Davis ◽  
Majella M. Neveu ◽  
Chris R. Hogg ◽  
Michael J. Morgan ◽  
...  
Keyword(s):  
Contrast Sensitivity ◽  
Late Onset ◽  
Luminance Contrast ◽  
Strabismic Amblyopia ◽  
Sensitivity Changes

BICOLOR OPTICAL TREATMENT OF MULTI-LAYERS FILM SAMPLES

2010 ◽  
Vol 24 (08) ◽  
pp. 937-942 ◽  
Author(s):  
K. OZGA ◽  
J. EBOTHÉ ◽  
H. NGUYEN CONG ◽  
D. MARTEL ◽  
W. GRUHN ◽  
...  
Keyword(s):  
Electric Field ◽  
Power Density ◽  
Local Heating ◽  
Independent Measurement ◽  
Yag Lasers ◽  
Optical Susceptibility ◽  
Dc Electric Field ◽  
Optical Treatment ◽  
532 Nm ◽  
Multi Layer Film

In the present paper, we study the influence of simultaneous polarized optical treatment (10 ns Nd: YAG lasers with wavelengths 1064 nm and 532 nm with power density 0.6 GW/cm2) together with electrostatic dc electric field (up to 8 kV/cm) on self-assembled multi-layer film samples. The second-order optical susceptibility (SOS) achieves the maximal values after one minute simultaneous dc electrical-optical treatment. Further treatment will not enhance the values and even leads to the decrease of SOS. The independent measurement of the local temperature shows that local heating does not exceed 10.1 K.

Penalization versus Part-time Occlusion and Binocular Outcome in Treatment of Strabismic Amblyopia

Ophthalmology ◽  
1997 ◽  
Vol 104 (12) ◽  
pp. 2156-2160 ◽  
Author(s):  
Kurt Simons ◽  
Katherina C. Gotzler ◽  
Susan Vitale
Keyword(s):  
Strabismic Amblyopia ◽  
Part Time

scholarly journals Neuronal Responses in Visual Area V2 (V2) of Macaque Monkeys with Strabismic Amblyopia

2011 ◽  
Vol 21 (9) ◽  
pp. 2033-2045 ◽  
Author(s):  
H. Bi ◽  
B. Zhang ◽  
X. Tao ◽  
R. S. Harwerth ◽  
E. L. Smith ◽  
...  
Keyword(s):  
Visual Area ◽  
Neuronal Responses ◽  
Strabismic Amblyopia ◽  
Macaque Monkeys ◽  
Area V2

scholarly journals Plaid perception is only subtly impaired in strabismic amblyopia

2008 ◽  
Vol 48 (11) ◽  
pp. 1307-1314 ◽  
Author(s):  
Benjamin Thompson ◽  
Craig R. Aaen-Stockdale ◽  
Behzad Mansouri ◽  
Robert F. Hess
Keyword(s):  
Strabismic Amblyopia
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