Validation of farsi translation of the ocular surface disease index

Purpose: to develop and validate a farsi version of ocular surface disease index (osdi) for the iranian population. methods: this study was a translation and cross-cultural adaptation and validation of farsi version of osdi. four bilingual (english-persian) individual including three physicians and one native english teacher were asked to translate the original english osdi questionnaire in farsi. following back and forth translation,integration and pilot check,the translation team came to consensus on translation. consecutive patients visited in ophthalmology clinic,underwent comprehensive general ophthalmology exam and specific assessments for dry eye including non-anesthetic schirmer's test,fluorescein tear break-up time,fluorescein and rose bengal staining and farsi osdi (f-osdi). f-osdi was again rechecked within 2-7 days after the examination. results: forty-four participants were enrolled into study. thirty-two (72.7%) were male and 12 (27.3%) female. mean age of participants was 45.5 (sd = ±15.97,range = 18-80) years. twenty five percent were less than 31 years old and 10% percent older than 65. the cronbach's alpha for the questionnaire was 0.807. questions number 7,8 showed excellent,and question12 showed good internal consistency,respectively. there was a significant correlation between all pre measures and post assessments. conclusion: the obtained f-osdi showed acceptable internal consistency and test-retest reliability. this f-osdi could be used for assessment of dry eye,ocular surface discomfort and quality of life in iranian and farsi speaking populations. pakdel farzad 1 department of ophthalmology,eye research center,rassoul akram hospital,iran university of medical sciences; department of ophthalmic plastic and reconstructive surgery,eye research center,farabi eye hospital,tehran university of medical sciences,tehran gohari mahmood 2 school of public health and health studies,university of waterloo,ontario jazayeri anis 3 eye research center,rassoul akram hospital,iran university of medical sciences,tehran amani afsaneh 4 eye research center,rassoul akram hospital,iran university of medical sciences,tehran pirmarzdashti niloofar 5 eye research center,rassoul akram hospital,iran university of medical sciences,tehran aghaee hossein 6 department of ophthalmology,eye research center,rassoul akram hospital,iran university of medical sciences,tehran the definition and classification of dry eye disease: report of the definition and classification subcommittee of the international dry eye workshop (2007). ocul surf 2007;5:75-92. research in dry eye: report of the research subcommittee of the international dry eye workshop. ocul surf 2007;5:179-193. beltran f,betancourt nr,martinez j,valdes cs,babayan a,ramírez-assad c,et al. transcultural validation of ocular surface disease index (osdi) questionnaire for mexican population. invest ophthalmol vis sci 2013;54:6050. zhao h,liu z,yang w,xiao x,chen j,li q,zhong t. development and assessment of a dry eye questionnaire applicable to the chinese population. zhonghua yan ke za zhi 2015;51:647-654. prigol am,tenório mb,matschinske r,gehlen ml,skare t. translation and validation of ocular surface disease index to portuguese. arq bras oftalmol 2012;75:24-28. irkec mt,group to. reliability and validity of turkish translation of the ocular surface disease index (osdi) in dry eye syndrome. iovs 2007;48:408. walt jg,rowe mm,stern kl. evaluating the functional impact of dry eye: the ocular surface disease index. drug information journal 1997;31:1436. mcmonnies ha. marginal dry eye diagnosis,in holly f ed. the preocular tear film in health,disease and contact lens wear: dry eye institute inc: lubbock; 1986. mcmonnies cw,ho a. patient history in screening for dry eye conditions. j am optom assoc 1987;58:296-301. gothwal vk,pesudovs k,wright ta,mcmonnies cw. mcmonnies questionnaire: enhancing screening for dry eye syndromes with rasch analysis. invest ophthalmol vis sci 2010;51:1401-1407. nichols kk,nichols jj,mitchell gl. the reliability and validity of mcmonnies dry eye index. cornea 2004;23:365-371. nichols kk,mitchell gl,zadnik k. performance and repeatability of the nei-vfq-25 in patients with dry eye. cornea 2002;21:578-583. schein od,muñoz b,tielsch jm,bandeen-roche k,west s. prevalence of dry eye among the elderly. am j ophthalmol 1997;124:723-728. schein od,muñoz b,tielsch jm,bandeen-roche k,west s. prevalence of dry eye among the elderly. am j ophthalmol 1997; 124(6): p. 723-728. © 2017 journal of ophthalmic and vision research published by wolters kluwer - medknow.