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UPDATE: THIS FILE LAST EDITED 10-2017

A SIGHT LOSS INFORMATION DETECTIVE
PUBLICATION - ALL RIGHTS RESERVED

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NOTE: THIS INFORMATION IS NOT INTENDED AS AN ENDORSEMENT OR RECOMMENDATION, AND IS PRESENTED SIMPLY AS A CONVENIENCE TO THE READER. BECAUSE OF THE CHANGING AVAILABILITY OF PRODUCTS AND SERVICES, THE COMPLETENESS OF THIS LISTING IS NOT GUARANTEED.

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71. BLACK MAGIC

BY LEARNING FROM HISTORY TURNS A NEGATIVE INTO A POSITIVE.

DURING THE SECOND WORLD WAR THERE WAS AN ACTUAL POSSIBILITY ON THE AMERICAN WEST COAST OF ENEMY AIR ATTACKS, HOWEVER, THIS THREAT WAS ONLY AT NIGHT.

SO FOR SEVERAL YEARS THE WARTIME CIVIL DEFENSE AFTER DARK WAS TO REQUIRE ALL ILLUMINATED BUILDING WINDOWS TO BE COVERED BY BLACK-OUT CURTAINS TO BLOCK ALL INTERIOR LIGHTING.

THIS PAST LIGHT CONTROL TECHNIQUE CAN ALSO BE USED AS A VISUAL DEFENSE TO HELP PARTIALLY SIGHTED CONSUMERS.

SPECIFICALLY, A BLACK-OUT CURTAIN BECOMES A GLARE SHIELD BY STOPPING DAYTIME ILLUMINATION THROUGH PATIO OR BALCONY DOORS AND TOO MANY WINDOWS.

HAPPILY BY KEEPING BRIGHTNESS OUT PREVENTS VIDEO DISPLAY REFLECTIONS FOR COMPUTERS, SMART PHONES, TELEVISIONS AND VIDEO MAGNIFIERS.

SENSITIVE EYES SHOULD ALSO READ...

LINK: SUN GLARE
SITE: WWW DOT SIGHT LOSS SOLUTIONS DOT ORG

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