Investigation of corneal changes in soft contact lens wearers

Yıl 2020, , 273 - 278, 03.12.2020

Mübeccel Bulut Abdurrahman Bilen Ayşe Sevgi Karadağ

https://doi.org/10.30569/adiyamansaglik.591181

Öz

Aim: Investigate corneal changes in patients who use contact lenses.
Materials and Methods: 18 patients included in this study. Central corneal thickness and keratometry measured by topography, corneal endothelial values obtained using specular microscope and Schirmer results were recorded.
Results: The mean age was 22.77±4.00. 15 patients were female, 3 male. K1, K2, CCT and endothelial cell count levels showed decreases after lens use (p<0.05). An increase was observed in posterior K1.
Conclusion: Despite their high oxygen permeability, silicone hydrogel lenses still affect the physiology and architecture of the cornea.

Anahtar Kelimeler

Contact lens, Cornea, Topography

Yumuşak kontakt lens kullanıcılarında korneal değişikliklerin incelenmesi

Öz

Amaç: Kontakt lens kullanan hastalardaki korneal değişimlerin incelenmesi.
Gereç ve Yöntem: Kontakt lens kullanmak için başvuran 18 olgunun, topografi cihazı ile ölçülen merkezi korneal kalınlık (MKK) ve keratometri değerleri (K1, K2), speküler mikroskop cihazı kullanılarak elde edilen kornea endotel değerleri ve schirmer testi sonuçları kaydedildi.
Bulgular: Çalışmaya 18 hastanın 36 gözü dâhil edildi. Olguların yaş ortalaması 22,77±4,00, 15’i kadın, 3’ü erkekti. K1, K2, MKK ve endotel sayısı değerlerinde lens kullanımı sonrası anlamlı bir azalma olduğu görüldü. (p<0,05) Posterior K1 değerinde lens kullanımından sonra anlamlı bir artış olduğu görüldü.
Sonuç: Silikon hidrojel lensler yüksek oksijen geçirgenliğine rağmen korneanın fizyolojisi ve mimarisini hala etkileyebilmektedir.

Anahtar Kelimeler

Kontakt lens, Kornea, Topografi

Kaynakça

• McCanna DJ, Driot JY, Hartsook R, Ward KW. Rabbit models of contact lens-associated corneal hypoxia: a review of the literature. Eye Contact Lens. 2008;34(3):160-5.
• Dillahay SM. Does the level of available oxygen impact comfort in contact lens wear?: A review of the literature. Eye Contact Lens. 2007;33(3):148-55.
• Temel A. Sert Kontakt Lensler (Materyal, Tasarım, Uygulama). MN Oftalmoloji. Ankara. 1994; 1: 21–24.
• Pastewski BM, Lee AM. Contact Lens Care(Part 1). Am Drug. 1985; 192(11):117- 139.
• Engle JP. Contact Lens Care. Am Drug. 1990; 201(1): 54-65.
• TOD Eğitim Yayınları 4, Geleneksel Kontakt Lensler, Kontakt Lensler Ve Uygulanması, 1, İstanbul.2005;69-92.
• Bergmanson JP, Chu LW. Corneal response to rigid contact lens wear. Br J Ophthalmol. 1982;66(10):667-75.
• Schornack M. Hydrogel contact lens-induced corneal warpage. Contact Lens Anterior Eye. 2003;26(3):153–9.
• Fonn D, du Toit R, Situ P, Vega J, Simpson T,Chalmers R. Apparent sympathetic response of contralateral non-lens wear igeyes after overnight lens wear in eyes after overnight lens wear in the fellow eye. Invest Ophthalmol Vis Sci. 1998(2);39-336.
• Holden BA, Mertz GW. Critical oxygen levels to avoid corneal edema for Daily and extended wear contact lenses. Invest Ophthalmol Vis Sci. 1984;25(10):1161-7.
• Lee JS, Park WS, Lee SH, Oum BS, Cho BM. A comparative study of corneal endothelial Changes induced by different durations of soft contact lens wear. Graefes Arch Clin Exp Ophthalmol. 2001;239(1):1-4.
• Fleming C, Austen R, Davies S, Bolis S, Papas E, Holden BA. Precorneal deposits during soft contact lens wear. Optom Vis Sci. 1994;71(12):152-3.
• Iskeleli G, Karakoc Y, Ozkok A, Arici C, Ozcan O, Ipcioglu O, Comparison of the efects of First and second generation silicone hydrogel contact lens wear on tear film osmolarity. Int. J. Ophthalmol.2013;6(5): 666–70.
• Radaie SM, Hashemi H, Jafarzadehpur E, Yekta AA, Khabazkhoob M. Corneal Biomechanical Changes Following Toric Soft Contact Lens Wear. J Ophthalmic Vis Res. 2016; 11 (2): 131-135.
• Gonzalez-Meijome J. M, Gonzalez-Perez J, Cervin A, Yebra-Pimentel E, Parafita M. A, Changes in Corneal Structurel with Continuous Wear of High-Dk Soft Contact Lenses: A Pilot Study. Optometry and Vision Science. 2003;80(6):440-6.
• Ruiz-Montenegro J, Mafra CH, Wilson SE, Jumper JM, Klyce SD, Mendelson EN. Corneal topographic alterations in normal contact lens wearers. Ophthalmology. 1993; 100 (1):128-34.
• Tyagi G, Collins M, Read S, Davis B, Regional Changes in Corneal Thickness and Shape with Soft Contact Lenses. Optometry and Vision Science.2010; 87(8):567-75.
• Chalmers RL, Begley CG. Dryness symptoms among an usselected clinica popularion with and without contact lens wear. Cont Lens Anterior Eye. 2006;29(1):25-30.
• Glasson MJ, Stapleton F, Keay L, Sweeney D, Willcox MD. Differences in clinical parameters and tear film of tolerent and intolorent contact lens wearers. Invest Ophthalmol Vis Sci. 2003;44(12):5116-24.
• Kettesy B, Vardai J, Berta A, ModisJr. L and Kemeny A. A survey of corneal changes caused by Daily wear silicone hydrogel contact lenses. Journal of Innovative Optical Health Sciences. 2015;8(6) 15500441-9.
• Lee JS , Park WS, Lee SH, Oum BS, Cho BM. A comparative study of corneal endothelial changes induced by different durations of soft contact lens wear. Graefe’s Arch Clin Exp Ophthalmol. 2001;239(1):1-4.
• Steffen RB, Schnider CM. The impact of silicone hydrogel materials on overnight corneal swelling. Eye Contact Lens. 2007(33):115-20.