Show LET THERE BE LIGHT hygeia october 1937 it is gratifying to note the steps ifor that are being taken in ahls country for the conservation of eyesight for the percentage of persons suffering from defective vison is enormous modern science has made a study of the proper lighting of homes schools arid places of business and is now making definite defan te recommendations as to the correct amounts of light required for each occupation the accepted unit of light ng intensity is the foot candle or the amount of light given by a candle a distance of I 1 foot A small instrument called the light meter measures light in foot candles as easily and as accurately as a thermometer m 0 meter records temperature recently many factories have improved their lighting systems with the aid of the light meter and now report greater output of work and improved health of employees schools too are correcting their light lighting lightnr ng facilities and bringing them up to modern scientific standards as indicated by the light metr meter many children have been accused of beng backward and dull in theirl their I 1 school work when nothing wa really the matter except poor alg lighting ahting in the room or their own defective vision some kinds of work require a greata great deal more light than others sewing Is generally much barcer on the i eyes than reading and therefore much more light la Is needed no one should ev ever er sew at night on darks dark materials unless the best poss possible ble i light is available light acts as a magnifier ot of small I 1 details an object must be tace as adf 1 large to be as readily visible under 1 foot candle as it would be under toot foot candles ot of light but this does not mean that a home must be ablaze with when a family Is simply chatting or resting a small number of toot foot candles is indicated but tor for every spot in the home where reading sewing or study is done the proper amount ot of light should be available there are simple precautions we can all take which will help us to get more enjoyment and profit 0 out ut of the hours spent at home using our eyes for work or recreation it Is important to keep light bulbs clean the of a lamp bulb can be decreased 40 per cent I 1 by an accumulation of grease and dust that easily goes unnoticed lamp shades should have light 1 colored linings for dark linings absorb the light instead of re reflecting fleeting it and shades should be wide enough at the bottom to spread light over the entire work area the light should fall fail directly on the work and it should be diffused and tree free from glare by observing the expression on the faces of members of the family as they read sew or study one can frequently determine whether or not nol they are st to conditions 1 a ee TJ they 44 vo are t squint apt bains of 4 modern pare ts realize real that each 00 and child pair of eyes and will wai acil h 4 other are be cornin ley er lul I 1 COnse OU 9 every diore 06 and proved health and ana day 7 ir bound to be the rew eyell and watchfulness of th BA counch |