OCR Text |
Show - Are Our Eyes EyesGetting EyesGetting Getting Weaker ? Defects of Vision Increase IncreaseWith IncreaseWith With Years-Poor Years Poor YearsPoorLight Years - PoorLight Light a Cause . When born , ncirly ne\rly ne rly nearly ' \ all babies bnbIes have havenormal havenormal havenormal normal e eyes eves es With the same hind kind hindof kindof kindof of care that carries them through In Infancy infancy Infancy fancy and nnd childhood , hippy h\ppy h ppy happy ' \ and andhe andhe andheilthy he llthy-their llthy their ilthy-their ilthy - their eyes should remaIn remaInnorml remainnormal remainnormil norm\l norm l normal ' \ . But It has been found thit th\t th t that ' \ by the thetime thetime thetime time children finish Gnash gride gr\de gr de grade ' \ school 20 20per 20per 20per per cent of them have defective vi vision visloa vlslon sion sloa "When When " they have finished cot col cotlege colloge college lege loge . , , 40 per cent ba have base , e e eye 03 , } e difficulties difficultiesI'orty difficultiesForty difficultiesForty I'orty Iorty Forty ' years vears ears of age shows CO GO per cent centwIth centwith centwith wIth defective , vision Simon I8IOn , , and past sn.ty snty silty sixty,95 sixty95 . , 9 95 : > per cent are so affected . Why should the eves eyes e es of so many manyshow manyshosv manyshow show shosv such an alarming Increase In InvIsIonal Invisional Invisional vIsIonal defects7 defects ? ' Because these chili chilithen dilldien hn hnd1en d1en then , these gron growing m girls and b03 boys- boys boysyoung bojs bojsyoung s- s syoung - young and lInd older men and nnd women \ womenused omen , , used their eyes with too little llttle light S ! SIn In the davtime daytime da time outdoors there Is Isof , , of course , plenty of light-the light the light - the O\t O t not Otural notural ' \ mtural ural div day d\ d dllght ' \ light llght liglht nature developed our oureyes oureyes oureyes eyes to see bv by b Tlie The light from nn an nnunclouded anunclouded anunclouded unclouded sky sl.y sly . gh gis gives es us 10,000 10000 , foot footcandles footcandles footcandles candles In the sinde sh\de sh de shade ' \ of a tree , the theJlght thelight thelight Jlght light will w1l1 be Up\\ Up upwards Upards \ ards of 1 1000 1 000 foot footcandle footcandles footcandles candle candles ' ! Close by a n n window Indo\v Indo v \ there theremay theremay theremay may be 200 foot candles of li ll light lightshining ht htshIning litshining shIning on your book bool . . page or needle needleworl needlework needlework worl work . . What Wmt ] Is a foot candle cnndle1 ? It Is the thescientist thescientist thescientist scientist s "yardstick yardstick "yardstlclc yardstlclc " ' of light meas measurement measurement measurement urement . The amount of light llght one onecandle onecandle onecandle candle would shine on a surface one onefoot onefoot onefoot foot awiy aw\y aw y away ' \ . But Dut at nIght-that nIght that night - that Is another anotherstory anotherstory anotherstory story I r ! It is \ veiy sett e1 y ' common for people peopleto to read or sew \ with Itl1 only four foot footcandles footcandles footcandles candles of light , ' \ where here they should shouldhae shouldbase shouldhave ha\e ha e base \ an nn illumination of at least 10foot 10foot 10 foot candles for the CO'll COll consest coarsest ' sest kind ICind hind of ofe ofeyessolk ofcvewoik e eyessolk e \ \ 01 l ; 20 foot candles for re\d re d read reding reading rciding ' \ ing tine tme print pnnt and for se\\ se sewing seIng \ Ing ; 30 30foot 30foot 30foot foot cindles c\nllles c nllles candles ' \ tor for continued use of the theeyes theeyes theeyes theeyesUsing eyes eyesUsmg eyesUsing Using Usmg the eyes with less light 1Il1t . ; Unn than Unnthese thanthese thinthese these m'nimum mnimum minimum ' ' amounts may reuIt result reuItin resultIn resultla : , in e eyestrain eve e strain and possible perm\nent perm nent permanent permnentInjury permanentinjury perminentInjury ' \ Injury to sisionBe \ vision sision visionBe Islon IslonDe Be De sure you vou ou have enough lIht light liohtIf . ; ! It If you use electrlcItasl electrlclt3-ask electrlclt3 ask electricity electrlcIt -asl asl - ask your lI light lightcompany lightcompany ht htcompany company to test your vour our lamps and tIs- tIs fix- fix tIstures fixtures fix fixtures : - tures to see if they give gI\'e gI 'e e \ ' enough light lightfor lightfor lightfor for safe seeIngIf seeing seeingIt It If you do not ha\ ha have hae base \ e electricity electliclty , , get getone getone getone one of the new 300 candle PO\\ PO POer power powerpressure powerpleasure \ er erpI pI pressure essure lamps thit tl1\t tl1 t that ' \ burn l.erosene lerosene kerosene l.eroseneor keroseneor keroseneor . or gasoline gasollne gasolineWhen gasollneWhen When your work svork is held three feet feetnay feetaway feetaway n\\ay n ay away \ from the lamp , the latter lattershould lattershould lattershould should be of at leist le\st le st least ' \ 275 2iG 215 candle candlepower candlepower candlepower power Intensity to assure the 20 to to30 30 foot candles of light y vou ou need neell to toprotect toprotect toprotect protect your sight It is Important Importantthat Importantthat Importantthat that you use a high candlepo\\ candlepo candlepoer candlepower candlepowerlamp candlepowerlamp \ er erlamp lamp to be sure you vou ou hive h'lve hlve have ' enough enoughfight enoughlight : fight ght to protect your vour our sight . . 1 |