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Subjective Symptoms according to Fitting Test in Soft Contact Lens Wearers

소프트콘택트렌즈 착용자의 피팅 상태 확인 유무에 따른 자각적 증상

  • Kim, Jung-Hee (Department of Optometry & Vision Science, Dongnam Health University) ;
  • An, Youngju (Catholic Institute of Visual Science, College of Medicine, The Catholic University of Korea)
  • 김정희 (동남보건대학교 안경광학과) ;
  • 안영주 (가톨릭대학교 의과대학 시과학연구소)
  • Received : 2018.10.31
  • Accepted : 2018.12.17
  • Published : 2018.12.31

Abstract

Purpose : The purpose of this study was to investigate subjective symptoms according to the wearing, purchase and fitting status of soft contact lens wearers, and consumer perception of base curve. Methods : A survey was conducted for those who visited optical shops and lens shops in Seoul from June to August 2018. A total of 98 answer sheets they submitted were used for the analysis. The chi-square test and Fisher's exact test were used to compare subjective symptoms (dryness, glare, uncomfortable fitting, and decreased vision) according to whether fitting condition is screened (case history and push-up test, ect relevant to wearing sensation), and the odds ratio (OR) was obtained by the logistic regression analysis. Results : When the contact lenses were purchased, the rate of which the visual acuity test was performed was 86.6% at optical shop and 64.7% at lens shop. When purchasing contact lens and the contact lens was not tested for fitting, they more experienced dryness (OR 4.41, 95% CI 1.25-15.62) and uncomfortable fitting (OR 2.68, 95% CI 1.08-6.64) than testing for fitting. In addition, it was investigated that 87.8% of contact lens wearers did not know about the term base curve, 92.9% did not listen to an explanation related to the base curve when purchasing contact lenses, and 96.9% did not experience with base curve test. Conclusion : It would be thought that satisfaction of the contact lens fitting of existing consumers should be improved by changing a proper base curve by confirming the fitting condition when prescribing soft contact lens.

목적 : 소프트 콘택트렌즈 착용자를 대상으로 착용실태 및 구입현황, 피팅 상태 확인 유무에 따른 자각적 증상, 그리고 베이스커브에 대한 소비자 인식도를 알아보고자 하였다. 방법 : 2018년 6월부터 8월까지 소프트 콘택트렌즈를 구매하기 위하여 서울소재의 안경원 및 렌즈샵에 방문한 사람들을 대상으로 설문조사를 시행하였으며, 총 98부를 분석에 이용하였다. 카이제곱 검정과 Fisher의 정확 검정을 이용하여 피팅 상태 확인(착용감과 관련된 문진, 푸시업 테스트 등) 유무에 따른 자각적 증상(건조함, 빛 번짐, 착용감 불편, 시력저하)을 비교하였으며, 로지스틱 회귀분석을 이용하여 오즈비를 구하였다. 결과 : 소프트 콘택트렌즈를 구입 시 시력검사를 받고 구입한 경우는 안경원은 86.6%, 렌즈샵은 64.7%이었다. 콘택트렌즈를 구입할 때 피팅 상태의 확인을 받지 않은 경우에는 피팅 상태의 확인을 받은 경우에 비해 건조함(오즈비 4.41, 95% 신뢰구간 1.25-15.62)과 착용감 불편(오즈비 2.68, 95% 신뢰구간 1.08-6.64)을 더 많이 경험하는 것으로 나타났다. 또한 콘택트렌즈 착용자의 87.8%가 베이스커브라는 용어를 알지 못하고 있었으며, 콘택트렌즈 구매 시 92.9%가 베이스커브와 관련된 설명을 듣지 못한 것으로 나타났고, 96.9%가 베이스커브 검사를 받은 경험이 없는 것으로 조사되었다. 결론 : 소프트 콘택트렌즈 처방 시 피팅 상태의 확인을 통한 적절한 베이스커브의 변경을 통해 기존 소비자들의 콘택트렌즈의 착용 시 만족도를 향상시켜야 할 것으로 생각된다.

Keywords

Acknowledgement

Supported by : Dongnam Health University

References

  1. Key JE: Development of Contact Lenses and Their Worldwide Use. Eye Contact Lens 33(6 Pt 2), 343-345, 2007. https://www.ncbi.nlm.nih.gov/pubmed/17975417 https://doi.org/10.1097/ICL.0b013e318157c230
  2. Wichterle O, Lim D: Hydrophilic Gels for Biological Use. Nature 185, 117-118, 1960. https://www.nature.com/articles/185117a0 https://doi.org/10.1038/185117a0
  3. Kim PS, Kim SD et al.: A Survey on Contact Lens Care in Young Adolescent Student. J Korean Ophthalmol Soc. 55(1), 54-58, 2014. http://www.riss.kr/link?id=A100533477 https://doi.org/10.3341/jkos.2014.55.1.54
  4. Lee JH, Lee KS et al.: Contact Lens Prescribing Pattern in Korean During 2010 to 2013. J Korean Oph Opt Soc. 19(3), 323-329. 2014. http://www.riss.kr/link?id=A104881591 https://doi.org/10.14479/jkoos.2014.19.3.323
  5. Shin YJ, Moon JW et al.: Corneal Neovascularization and Corneal Hypesthesia as Contact Lens Complications. J Korean Ophthalmol Soc. 47(1), 25-30, 2006. http://www.riss.kr/link?id=A100522664
  6. Kim KS, Kim SK et al.: The Survey on its Wearing Schedule of Workers Wearing Contact Lens. J Korean Oph Opt Soc. 20(1), 43-49. 2015. http://www.riss.kr/link?id=A104881789 https://doi.org/10.14479/jkoos.2015.20.1.43
  7. Jones L, Brennan NA et al.: The TFOS International Workshop on Contact Lens Discomfort: report of the contact lens materials, design, and care subcommittee. Invest Ophthalmol Vis Sci. 54(11), TFOS37-70, 2013. https://www.ncbi.nlm.nih.gov/pubmed/24058138 https://doi.org/10.1167/iovs.13-13215
  8. Young G, Hall L et al.: Inter-relationship of Soft Contact Lens Diameter, Base Curve Radius, and Fit. Optom Vis Sci. 94(4), 458-465, 2017. https://www.ncbi.nlm.nih.gov/pubmed/28099240 https://doi.org/10.1097/OPX.0000000000001048
  9. Young G: Evaluation of soft contact lens fitting characteristics. Optom Vis Sci. 73(4), 247-254, 1996. https://www.ncbi.nlm.nih.gov/pubmed/8728492 https://doi.org/10.1097/00006324-199604000-00006
  10. Lowther GE, Tomlinson A: Critical base curve and diameter interval in the fitting of spherical soft contact lenses. Am J Optom Physiol Opt. 58(5), 355-360, 1981. https://www.ncbi.nlm.nih.gov/pubmed/7258284 https://doi.org/10.1097/00006324-198105000-00002
  11. Fan DS, Cheung EY et al.: Myopia progression among preschool Chinese children in Hong Kong. Ann Acad Med Singapore 33(1), 39-43, 2004. https://www.ncbi.nlm.nih.gov/pubmed/15008560
  12. Hong KH, Kim SJ: A Study of Medical Costs according to the Number of Myopic Patients in Korea. Korean J Vis Sci. 19(2), 149-158, 2017 http://www.riss.kr/link?id=A104223880 https://doi.org/10.17337/JMBI.2017.19.2.149
  13. Kim JH, Song JS et al.: A survey of contact lens-related complications in Korea: the Korean Contact Lens Study Society. J Korean Ophthalmol Soc. 55(1), 20-31, 2014. http://www.riss.kr/link?id=A100533474 https://doi.org/10.3341/jkos.2014.55.1.20
  14. Tomlinson A, Bibby MM: Movement and rotation of soft contact lens. Effect of fit and lens design. Am J Optom Physiol Opt. 57(5), 275-279, 1980. https://www.ncbi.nlm.nih.gov/pubmed/7386591 https://doi.org/10.1097/00006324-198005000-00002
  15. Park HW, Kim TH: A Study on Contact Lens Wear Status of After Corneal Refractive Surgery Subjects. Korean J Vis Sci. 19(1), 9-17, 2017. http://www.riss.kr/link?id=A103064029 https://doi.org/10.17337/JMBI.2017.19.1.9
  16. Young G, Schnider C et al.: Corneal topography and soft contact lens fit. Optom Vis Sci. 87(5), 358-366, 2010. https://www.ncbi.nlm.nih.gov/pubmed/20386354
  17. Garner LF: Sagittal height of the anterior eye and contact lens fitting. Am J Optom Physiol Opt. 59(4), 301-305, 1982. https://www.ncbi.nlm.nih.gov/pubmed/7102787 https://doi.org/10.1097/00006324-198204000-00003
  18. Young G: Ocular sagittal height and soft contact lens fit. Cont Lens Anterior Eye 15(1), 45-49, 1992. https://www.contactlensjournal.com/article/0141-7037(92)80031-T/abstract
  19. Bibby MM: Sagittal depth considerations in the selection of the base curve radius of a soft contact lens. Am J Optom Physiol Opt. 56(7), 407-413, 1979. https://www.ncbi.nlm.nih.gov/pubmed/517631 https://doi.org/10.1097/00006324-197907000-00001
  20. Ozkan J, Ehrmann K et al.: Lens parameter changes under in vitro and ex vivo conditions and their effect on the conjunctiva. Cont Lens Anterior Eye. 36(4), 171-175, 2013. https://www.ncbi.nlm.nih.gov/pubmed/23395396 https://doi.org/10.1016/j.clae.2013.01.004
  21. Dumbleton KA, Chalmers RL et al.: Effect of lens base curve on subjective comfort and assessment of fit with silicone hydrogel continuous wear contact lenses. Optom Vis Sci. 79(10), 633-637, 2002. https://www.ncbi.nlm.nih.gov/pubmed/12395917 https://doi.org/10.1097/00006324-200210000-00008
  22. Kikkawa Y: Measurements of Corneal Diameter and Size of Palpebral Aperture. J Jpn Cont Lens Soc. 21(3), 76-79, 1979. https://www.researchgate.net/publication/291316044_Measurements_of_corneal_diameter_and_size_of_palpebral_aperture.
  23. Lam CSY, Loran DFC: Designing contact lenses for oriental eyes. J Br Cont Lens Assoc. 14(3), 109-114, 1991. https://www.sciencedirect.com/science/article/abs/pii/0141703791800035 https://doi.org/10.1016/0141-7037(91)80003-5
  24. Congdon NG, Youlin Q et al.: Biometry and primary angle-closure glaucoma among Chinese, white, and black populations. Ophthalmology 104(9), 1489-1495, 1997. https://www.ncbi.nlm.nih.gov/pubmed/9307646 https://doi.org/10.1016/S0161-6420(97)30112-2
  25. Hickson-Curran S, Young G et al.: Chinese and Caucasian ocular topography and soft contact lens fit. Clin Exp Optom. 99(2), 149-156, 2016. https://www.ncbi.nlm.nih.gov/pubmed/26928568 https://doi.org/10.1111/cxo.12336