Journal of Korean Ophthalmic Optics Society (한국안광학회지)

The Korean Ophthalmic Optics Society (한국안광학회)
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Changes in Subjective Discomfort, Blinking Rate, Lens Centration and the Light Transmittance of Lens Induced by Exceeding Use of Daily Disposable Circle Contact Lenses in Dry Eyes

일회용 써클소프트렌즈의 일일 초과착용 시 유발되는 건성안의 자각적 불편감, 순목횟수, 중심안정 및 렌즈 광투과율의 변화

  • Park, Mijung (Dept. of Optometry, Seoul National University of Science and Technology) ;
  • Kang, Shin Young (Dept. of Optometry, Seoul National University of Science and Technology) ;
  • Chang, Jung Iee (Dept. of Optometry, Seoul National University of Science and Technology) ;
  • Han, Arum (Dept. of Optometry, Seoul National University of Science and Technology) ;
  • Kim, So Ra (Dept. of Optometry, Seoul National University of Science and Technology)
  • 박미정 (서울과학기술대학교 안경광학과) ;
  • 강신영 (서울과학기술대학교 안경광학과) ;
  • 장정이 (서울과학기술대학교 안경광학과) ;
  • 한아름 (서울과학기술대학교 안경광학과) ;
  • 김소라 (서울과학기술대학교 안경광학과)
  • Received : 2014.04.29
  • Accepted : 2014.06.18
  • Published : 2014.06.30
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Abstract

Purpose: This study was assessed to investigate the change of subjective and/or objective symptoms and the light transmittance of lens caused by the use longer than recommended wearing time of daily disposable circle contact lenses (circle lens) in dry eyes. Methods: Three daily disposable circle lenses made of etafilcon A, hilafilcon B, and nelfilcon A were applied on 30 dry eyes with smaller tear volume than normal eyes in their twenties free from any eye diseases by when subjects complained any kind of discomfort. On the first and the last days of lens wearing, subjective discomfort, blinking rate, lens centration on corneal surface and visible light transmittance of lens were recorded at every case and compared. Results: The circle lens wearers complained subjective discomfort and quit the lens wearing when they wore the circle lens longer than 10 hours even though there were some difference according to the lens materials of daily disposable circle lens. However, around 20% of dry eyes could wear the circle lens made of non-ionic materials longer than 40 hours. Dry eyes showed most sensitive feeling of subjective discomfort against the circle lens made of etafilcon A among three different lens materials. On the last day of lens wearing, the representative subjective discomforts were irritation, stiffness, dryness and tiredness. When the subjects wore circle lens more than the recommended time, blinking rate was significantly increased about 20~30% regardless of lens materials when it compared with the values right after lens wearing. On the last day of lens wearing, the vertical direction of lens centration was shifted to pupil center however, its distribution in horizontal direction was wide compared with the distribution right after lens wearing. Especially, the centration of etafilcon A lens was unstable. Furthermore, the visible light transmittance of 3 different circle lenses in dry eyes has significantly been reduced around 15% averaged. Conclusions: From these results, it was known that the increase of dryness and stiffness caused by overusage of daily disposable circle lens induced excess irritation and decreased visible light transmittance and caused significant more blinking, which provoked lens decentration. It was also revealed that dry eyes showed sensitive reaction subjectively and objectively against the overusage of circle lens made of high water content/ionic lens material even there were some difference of the degree depending on the individual and the lens material. Thus, this research can be suggested as the basic reference for the education about some unexpected problems and the side effect caused by the wearing of circle lens in dry eyes.

목적: 본 연구에서는 건성안이 일회용 써클소프트렌즈(이하 써클렌즈)의 권장착용시간을 초과하여 하루 이상 착용하였을 때 나타나는 자각적 및 타각적 변화와 렌즈 가시광선투과율의 변화에 대하여 알아보고자 하였다. 방법: 서로 다른 재질(hilafilcon B, nelfilcon A 및 etafilcon A)의 3가지 일회용 써클렌즈를 눈물량이 정상보다 적은 20대의 건성안(30안)에게 착용시키고 자각적 불편감, 착용자의 순목횟수, 각막에서의 렌즈중심안정위치 및 렌즈 가시광선투과율을 렌즈 착용직후와 착용자가 자각적 불편감의 증가로 더 이상 렌즈를 착용하지 못하였을 때에 각각 측정한 후 비교하였다. 결과: 일회용 써클렌즈의 재질에 따라 차이는 존재하였지만 10시간 이상 착용하였을 때부터 자각적 불편감을 호소하며 렌즈착용을 중단하였다. 그러나 비이온성 써클렌즈의 경우는 40시간 이상을 착용하는 건성안도 20% 정도로 나타났다. 건성안은 세 가지 재질 가운데 etafilcon A 재질 써클렌즈의 초과착용 시 가장 민감하게 자각적 불편감을 느끼는 것으로 나타났다. 써클렌즈 착용중단시점에서 대표적인 자각적인 불편감은 이물감, 뻑뻑함, 건조감 및 피곤함이었다. 일회용 써클렌즈를 초과착용하였을 때 순목횟수는 착용직후와 비교하여 렌즈재질에 관계없이 약 20~30%정도 통계적으로 유의하게 증가하였다. 렌즈착용 직후보다 착용 마지막 날에서 수직방향의 렌즈중심안정위치는 동공중심에 가까워졌으나 수평방향은 그 분포가 넓게 나타났으며, 특히 etafilcon A 재질 렌즈의 경우는 중심잡기가 불안정하였다. 또한 새 렌즈와 비교했을 때 초과착용한 후 렌즈의 가시광선투과율은 세 종류 렌즈 모두에서 평균적으로 15%가량 감소하였다. 결론: 이상의 결과에서 건성안에서 일회용 써클렌즈의 초과착용은 건조감과 뻑뻑함을 증가시켜 과도한 이물감을 느끼게 되며, 이는 가시광선투과율의 감소와 더불어 순목횟수의 유의한 증가를 유발하고 궁극적으로는 렌즈중심안정위치의 이탈을 초래함을 알 수 있었다. 또한 개인 및 렌즈재질에 따라서 정도의 차이는 있었으나 건성안은 정상안보다 고함수, 이온성렌즈의 초과착용에 자, 타각적으로 예민하게 반응함을 밝혔다. 따라서 본 연구결과는 건성안의 써클렌즈 착용으로 유발될 수 있는 문제점 및 부작용의 교육을 위한 기초 자료로 제시될 수 있다.

Keywords

References

  1. Song JS, Lee H, Kim JW, Chang MH, Ha SK, Kim HM. The effects of cheap tinted contact lenses on corneal swelling and ocular surface inflammation. J Korean Ophthalmol Soc. 2008;49(12):1888-1893. https://doi.org/10.3341/jkos.2008.49.12.1888
  2. Park M, Yang JH, Kim SM, Park SI, Park SH, Kim SR. Changes in centration of contact lenses on cornea and blink rate associated with overusage of disposable lenses. J Korean Oph Opt Soc. 2008;13(4):51-58.
  3. Park SH, Kim SR, Park M. The effect of circle lens and soft contact lens with identical material in clinical application on the eyes. J Korean Oph Opt Soc. 2011;16(2):147-157.
  4. Kim SR, Park SH, Joo SO, Lee HR, Park M. A comparison of the movements of circle contact lens and soft contact lens with identical material on cornea. J Korean Oph Opt Soc. 2012;17(1):27-35.
  5. Park M, Kwon HL, Choi SA, Kim SR. Changes in subjective/ objective symptoms and the light transmissibility of lens associated with overusage of daily disposable circle contact lenses in normal eyes. J Korean Oph Opt Soc. 2013;18(4):429-439. https://doi.org/10.14479/jkoos.2013.18.4.429
  6. Nichols JJ, Ziegler C, Mitchell GL, Nichols KK. Self-reported dry eye disease across refractive modalities. Invest Ophthalmol Vis Sci. 2005;46(6):1911-1914. https://doi.org/10.1167/iovs.04-1294
  7. Lemp MA. Report of the National Eye Institute/Industry Workshop on clinical trials in dry eyes. CLAO J. 1995;21(4):221-232.
  8. Subcommittee of the International Dry Eye Workshop. The definition and classification of dry eye disease: report of the Definition and Classification. Ocul Surf. 2007;5(2):75-92. https://doi.org/10.1016/S1542-0124(12)70081-2
  9. Lee BJ, Hong JH, Jung DI, Park M. A study on the confidence of dry eye diagnosis methods. J Korean Oph Opt Soc. 2008;13(1):15-20.
  10. Lee JH, Kee CW. The significance of tear break-up time in the diagnosis of dry eye syndrome. Korean J Ophthalmol. 1988;2(2):69-71. https://doi.org/10.3341/kjo.1988.2.2.69
  11. Abelson M, Ousler G, Nally L. D Welch, K Krenzer. Alternate reference values for tear film break-up time in normal and dry eye populations. Adv Exp Med Biol. 2002;506:1121-1125. https://doi.org/10.1007/978-1-4615-0717-8_55
  12. Dong EY, Kim EC. The Korean Contact Lens Study Society. Results of population - based questionnaire on the symptoms and life styles associated with contact lens. J Korean Ophthalmol Soc. 2001;42(1):30-35.
  13. Jung MA, Lee HJ. Survey on cosmetic color contact lens wear status of middle school, high school and college students. J Korean Vis Sci. 2013;15(4):439-446.
  14. Kim MJ, Hwang HK, Jang WY, Hong HK. The comparative analysis for the progression of dry eyes caused by wearing soft contact lenses and cosmetic soft contact lenses. J Korean Oph Opt Soc. 2011;16(4):375-381.
  15. Bausch & Lomb. Package insert/fitting guide-Bausch+ Lomb $Naturelle^{TM}$ daily disposable (hilafilcon B) cosmetically tinted contact lenses for daily wear. http://www.bausch.ca/-/m/BL/Canada/Files/Package%20Inserts/Vision%20Care/patient-guides/Naturelle-PIFG-CA-WEB.pdf. Accessed Oct. 7, 2013.
  16. Civa Vision. Professional fitting and information guide- $FreshLook^{(R)}$ ONE-DAY (nelfilcon A) color soft contact lenses. https://www.myalcon.com/docs/flod_pfg.pdf. Accessed Oct. 7, 2013.
  17. Johnson & Johnson Vision Care. Fitting & patient management guide-$ACUVUE^{(R)}$ $colours^{TM}$ brand(etafilcon A) contact lens. http://www.acuvueprofessional.ca/sites/default/ files/content/ca/desktop/pdf/FGs/C-09-01-01.pdf.Accessed Oct. 7, 2013.
  18. Park SI, Lee YJ, Lee HS, Park M. The momentary movement of soft contact lens by blinking: The change of movement depending on wearing time. J Korean Oph Opt Soc. 2007;12(1):1-7.
  19. Lee YJ, Park SI, Lee HS, Park M. The change of blink rate by wearing soft contact lens. J Korean Oph Opt Soc. 2006;11(3):173-179.
  20. Park M, Kwon MJ, Hyun SH, Kim DS. The adsorption pattern of protein to the soft contact lens and its effect on the visible light transmission and contact angle. J Korean Oph Opt Soc. 2004;9(1):53-68.
  21. Li S, Sack R, Vijmasi T, Sathe S, Beaton A, Quigley D, et al. Antibody protein array analysis of the tear film cytokines. Optom Vis Sci. 2008;85(8):653-660. https://doi.org/10.1097/OPX.0b013e3181824e20
  22. Ju EH, Sung AY, Oh SJ, Lee KJ. The effect of protein deposit on the water content, oxygen transmissibility and contact angle of the soft contact Lens. J Korean Vis Sci. 2010;12(4):291-302.
  23. Castillo EJ, Koenig JL, Andersen JM, Lo J. Characterization of protein adsorption on soft contact lenses 1. Conformational- changes of adsorbed human serum albumin. Biomaterials 1984;5(6):319-325.
  24. Zhao Z, Naduvilath T, Flanagan JL, Carnt NA, Wei X, Diec J, et al. Contact lens deposits, adverse responses, and clinical ocular surface parameters. Optom Vis Sci. 2010;87(9):669-674. https://doi.org/10.1097/OPX.0b013e3181ea1848
  25. Park SH, Kim SR, Park M. The effect of circle lens and soft contact lens with identical material in clinical application on the eyes. J Korean Oph Opt Soc. 2011;16(2):147-157.
  26. American National Standards Institute. Ophthalmics-Contact lenses-Standard terminology, tolerances, measurements and physicochemical properties; ANSI Z80.20-2010. New York: American National Standards Institute, 2010; 1-102.

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