Applied Microscopy

Korean Society of Microscopy (한국현미경학회)
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Spherical and Aspherical RGP Lens Fitting to Epithelium and Endothelium of Rabbit's Cornea -Scanning Electron Microscopy

구면과 비구면 RGP 렌즈 장기 착용시 각막 상피, 내피에 미치는 영향-주사전자현미경적 관찰

  • Kim, In-Suk (Department of Ophthalmic Optics of Chodang University) ;
  • Ryu, Gun-Chang (Department of Biology, Chonnam National University) ;
  • Chae, Soo-Chul (Department of Biology, Chonnam National University) ;
  • Jeon, Chang-Jin (Department of Biology, Kyungpook National University)
  • Published : 2006.09.30
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Abstract

To investigate the comparative effect of spherical and aspherical RGP lens were worn during 3 weeks on rabbit's cornea. Four white rabbits were worn right eyes with spherical lens and 4 white rabbits were worn right eyes with aspherical RGP lens. Left eyes were served as control. The rabbits were sacrificed at 3 weeks after fitting and observed morphological changes by scanning electron microscopy and also investigate proliferation rate of the corneal epithelium with RGP wearing. After spherical RGP lens wearing, the epithet layer damaged compared to aspherical lens. The superficial cell layer strip off seriously, cell size significantly changed abnormal. Both spherical and aspherical RGP lens fitting group showed so many bacteria and back surface of lens was found like a fern shape. The aspherical RGP lens original material type was some formal than spherical lens. We thought that these pattern was significantly altered with spherical lens by prohibited transmitter oxygen from atmosphere therefore the epithelium shape was changed. This suggested wearing the aspherical lens might be less physiologic than shperical lens fitting.

구면과 비구면 RGP렌즈 장용시 효과를 비교하기 위하여 3주간 실험토끼 눈의 각막에 콘택트렌즈를 착용 시켜 조사하였다. 8마리의 흰 실험토끼 눈 중 4마리의 우안은 구면 RGP렌즈, 4마리의 우안은 비구면 RGP렌즈를 착용 하였다. 왼눈은 대조군으로 사용하였다. 콘택트렌즈착용 3주 후 안구를 적출하여 형태변화를 주사전자현미경으로 관찰하였으며 RGP렌즈를 착용시 각막 상피 세포증식률을 조사하였다. 구면 RGP렌즈를 착용 후, 상피층은 비구면에 비하여 손상을 받았고 상피층은 심하게 벗겨져 나갔으며 세포 크기는 비정상으로 변하였다. 구면과 비구면 렌즈 두 군 모두 많은 박테리아가 보였으며 렌즈의 후면은 양치류 모양의 형태를 발견하였다. 비구면 렌즈의 원재료는 구면렌즈보다는 다소 정형적으로 보였다. 이러한 형태는 대기로부터 산소 전달을 방해함으로 인하여 구면렌즈를 착용한 군에서 각막을 변화시킨 것으로 생각된다. 이 논문은 구면 렌즈보다는 비구면 렌즈가 생리적으로 각막 세포에 덜 영향을 미쳐 더 적합한 것을 제시한다.

Keywords

References

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