Compensative Retinal Response to Loss of Luminance Efficiency

di Sharma, Nachieketa
Stato: Nuovo
69,59 €
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Sharma, Nachieketa Compensative Retinal Response to Loss of Luminance Efficiency
Sharma, Nachieketa - Compensative Retinal Response to Loss of Luminance Efficiency

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Descrizione

The book deals in detail how the retinal photoreceptor cones respond to loss of luminance efficiency due to oblique illumination through Stiles Crawford effect of the first kind (SCE I). In Stiles Crawford effect a peripheral entry always stimulates the retina weakly compared to an identical axial entry of a beam of light. Here, the Stiles Crawford effect is modeled as an apodization of the pupil to ascertain the nature of retinal response to coherent and incoherent illumination. Then the retinal response is studied by varying the contrast in an interference pattern formed on the retina. This contrast-controlled retinal response can be used as a biomarker in detecting eye diseases. Next, the photoreceptor cone is modeled as a waveguide supporting the fundamental mode to provide a physical basis to the psychophysical SCE I.How the dependence of coupling efficiency to the ratio of incident and waveguide mode spot size leads to a departure profile which is different for normal healthy eyes and diseased eyes. Thus, this spot-size ratio departure profile can be employed as a biomarker for the early detection of a hereditary eye-ailment: the retinitis pigmentosa.

Contributori

Scrittore:
Sharma, Nachieketa

Ulteriori informazioni

Biografia:
Dr Nachieketa K Sharma, working as a senior faculty in the Siksha 'O' Anusandhan University, Bhubaneswar, Odisha, India has more than 30 years of experience in teaching Physics at undergraduate level.His research interest includes photoreceptor optics, retinal imaging and devising biomarkers for detection of eye diseases involving photoreceptors.
Lingua:
Inglese
Edizione:
1/2016
Numero di Pagine:
168
Tipo multimediale:
Copertina morbida
Editore:
LAP Lambert Academic Publishing

Dati Principali

Tipologia prodotto:
Brossura
Data di pubblicazione:
7 giugno 2016
Dimensioni del collo:
0.22 x 0.15 x 0.01 m; 0.299 kg
GTIN:
09783659885433
DUIN:
SFJNUH981GD
69,59 €
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