小编在这里分享一下如何看懂国外的眼镜处方，帮助大家阅读和理解，揭开眼镜处方的面纱。
工具/原料
医生开具的眼镜处方
方法/步骤
1、O.D./O.S.:Whatyou’llnoticefir衡痕贤伎stinyourprescriptionaretheabbr髫潋啜缅eviationsofOculusDexterandOculusSinister.Thesearethelatintermsforrighteyeandlefteyerespectively.SomeprescriptionsmightevenhaveanadditionalcolumnlabeledO.U.whichstandsforOculusUterque.O.U.referstobotheyes.Abbreviatedlatintermsaretraditionallyusedinprescriptionsforeyeglasses.HowevernowadayssomedoctorsmayuseRE(righteye)orLE(lefteye)insteadofthelatinO.D.andO.S.InterestingtoknowisthatO.D.valuesappearbeforeO.S.valuesonyourprescription.Sinceyourrighteyeisthefirsteyethatyourdoctorchecksbecauseitistohisleft,hencehenotesdowntherighteyevaluefirstandthensubsequentlythelefteyereadings.
2、Spherical(SPHorsphere):Specifies咯悝滩镞ifyou'rehaveeithermyopiaorhyperopi锾攒揉敫a.Thisabbreviationindicateswhetherthepatientisnearsightedorfarsighted.Spherereferstotheamountoflenspowerprescribedtocorrectthediagnosedmyopicorhyperopiccondition.Negativenumberingindicatesnearsightednesswhilepositivevaluesareindicativeoffarsightedness.Thefurtheravalueisfromzero,themorethepatient'svisionhasdeteriorated.Thesphericalvaluesonyourprescriptionaremeasuredindiopters(D).o Prescriptionswithmyopia(i.e.arenearsighted)willhaveaMINUSsymbolfollowedbyanumber(thatindicatestheamount)o Prescriptionswithhyperopia(i.e.arefarsighted)willhaveaPLUSsymbolfollowedbyanumber(whichalsoindicatestheamount).Pleaseseethefollowingpictures,whichshouldbereadas·Right:-0.50·Left:-1.25·Right:Plano·Left:-0.25
3、Cylindrical(CYL/Cyl坡纠课柩inder):TheabbreviatedtermforCylind髫潋啜缅er,CYLreferstothelenspowerreadingforastigmatism.Inthecasethatthiscolumnisleftblankitwouldmeanthatthepatienthasnoastigmatism,slightorissosmallavaluethatitisnotnecessarytocorrect.CylinderpoweralwaysfollowsSpherepowerinaprescription.Ifthereadinginthecylindercolumnisprecededwithanegativeconnotationthenitsignifiesacorrectionfornearsightedastigmatismandapositiveprecededvalueisindicativeofacorrectionforfarsightedastigmatism.Pleaseseethefollowingpictures,whichshouldbereadas:·Right:-0.25·Left:-0.50·Right:+0.50·Left:+0.50
4、Axis:Alsowrittenas‘X’,itreferstotheorientationofastigmatism.TheAxispinpointsanumberfrom0to180with90representingtheeye’sverticalmeridianand180beingthehorizontalmeridian.IfaprescriptionincludesaCylinderpower,thenitalsoincludesanAxisvaluewhichfollowstheCYLpowerthoughprecededbyan‘X’ifwrittenfreehandbytheoptician.Pleaseseethefollowingpictures,whichshouldbereadas:·Right:30·Left:160·Right:5·Left:47
5、Addition:UsedtocorrectPresbyopia,itistheaddedmagnifyingpowerappliedtothebottomportionofmultifocallenses.Itisalwaysapluspowerevenifnotprecededbyaplussign.Itisalsogenerallyintherangeof+0.75to+3.00Dandisthesamepowerforbotheyes.ThefollowingAdditionis:Right:+2.50Left:+2.50
6、PupilDistance:ThedistancebetweenthecentreofonepupiltothecentreoftheotherpupilisthePD.Prescriptionglassesaremadesothatthedistancebetweentheopticalcentresoftheglasses’lenses,isthesameasyourPD.Right:31mmLeft:37mm
7、sotheprescriptionofthefollowingRx.shouldbereadas:SphCylAxisAddOD(righteye):-0.50-0.75083+2.25OS(lefteye):+0.25-0.25130+2.25PD:29.5/31
