角膜接触镜均适合于华人吗 ?(英文)

Soft contact lenses for Chinese eyes?

目的 :亚洲市场的隐形眼镜 ,绝大多数是西方国家设计和生产的。尽管华人和白人眼部参数的差异之处尚未完全明了 ,但是亚洲的一些验配师还是喜欢单纯以镜片配戴的“舒适度”作为验配标准。作者调查了华人配戴几种水凝胶软镜的临床表现 ,以确定科学的验配评判标准。方法 :在香港理工大学和新加坡理工大学这两处研究中心 ,各挑选十名年轻隐形眼镜配戴者 ,每只眼睛分别配戴 6种不同类型的镜片 (Weicon38E、HydronZ6、Medalist、Acuvue、Focus和See Quence) ,2 0分钟之后由 5名视光师分别对其进行验配评价 ,并让配戴者对配戴的舒适程度作 0～ 10 0分的主观评价。结果 :两地各种镜片的配戴舒适程度主观评价差异无显著 (P >0 .0 5 ) ,然两地各种镜片的配戴特征的差异具有显著性 (P <0 .0 5 )。结论 :亚洲之外设计的镜片 ,如根据个体差异进行适当选择再作验配 ,对于华人来说是比较适合的。没有哪种镜片能够适合所有华人的眼睛配戴的 ,某些镜片配戴的主观舒适度虽与其他种类镜片相同 ,但是检查时可发现其偏紧。因此 ,仅仅根据“舒适度”作为隐形眼镜验配评判依据 ,而不作必要的配戴评价 ,就容易导致配戴过紧。故对每位病人均作试戴评价 ,仍不失为选择适合于华人配戴的隐形眼镜的最佳方法。

MostcontactlensesavailableinAsiaaredesignedandmanufacturedintheWesterncountries.Althonghtheoc ularcharacteristicsbetweentheChineseandCancasianarenotfullyunderstood ,somepractitionersinAsiaprefertojudgethe fittingsolelybasedonthe‘comfort’ofthelens.ThisstudyinvestigatestheclinicalperformanceofsomehydrogelonChinese eyes .Thisstudywasconductedattwocentres(TheHongKongPolytechnicUniversityandSingaporePolytechnic) .Tenyoung softcontactlenswearerswererecruitedineachcentre .Sixdifferenttypesoflenses(Weicon 38E ,HydronZ6 ,Medalist,Acu vue ,FocusandSeeQuence)werefittedononeeye .Thefittingswereassessed 2 0minuteslaterby 5optometristsateachcen tre ,andthecomfortlevelsweregradedsubjectivelyona 0to 10 0scale .Theresultsshowthatcomfortlevelswerenotsignifi cantlydifferentamongthelensestestedinbothcentres(P >0 .0 5 ) .However,thereweresignificantdifferences (P <0 .0 5 ) infittingcharacteristicinbothcertres.Fittingofmostlenseswereacceptable,however,AcuvueandSeeQuencelenseswere foundtobesignificantlytighter (P <0 .0 5 ) .Asconclusion ,lensesdesignedoutsideAsiaaresuitableforChineseeyespro videdthatproperselectionandfittingareperformedtosuitindividualvariation .ThereisnosinglelensthatsuitsallChinese eye .Somelensesareequallycomfortable ,however,thefittingcouldbetighterwhencomparedtotheothers .Thus,judgingfit tingbasedon‘comfort’withoutproperfittingassessmentmayresultinprescribingatightlens .Trialfittingassessmentonev erypatientisstillthebestwaytoselecttheappropriatelensesforChineseeyes.