편평 콘택트렌즈 착용안에서 비접촉 안압계와 리바운드 안압계를 이용한 안압 측정
Intraocular Pressure Measurement with the Noncontact Tonometer and Rebound Tonometer through Plano Soft Contact Lenses
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목적: 편평 콘택트렌즈 착용이 비접촉 안압계와 리바운드 안압계를 통한 안압 측정에 미치는 영향에 대해 알아보고자 한다. 대상과 방법: 외안부 질환과 안과 수술의 기왕력이 없는 33명, 66안의 안압을 비접촉 안압계(tonometer CT-80, TOPCON, Japan)와리바운드 안압계(iCare rebound tonometryTM, Tiolat Oy, Finland)를 이용하여 측정하였다. 양안에 편평 콘택트렌즈(ACUVUE OASYSⓇ,Johnson & Johnson Vision Care Inc., USA)를 착용하고 20분 후에 안압을 반복 측정하여 대응표본 t 검정으로 비교하였다. 결과: 비접촉 안압계로 측정한 안압은 콘택트렌즈 착용 전 13.10 ± 2.25 mmHg, 착용 후 12.95 ± 2.56 mmHg이었고 리바운드 안압계는 콘택트렌즈 착용 전 14.13 ± 2.94 mmHg, 착용 후 13.84 ± 2.75 mmHg이었다. 두 안압계 모두 콘택트렌즈 착용 전후의 측정치사이에 통계적으로 유의한 차이가 없었다(p=0.47, p=0.11). 결론: 편평 콘택트렌즈 착용 시에도 비접촉 안압계와 리바운드 안압계를 이용하여 신뢰성 있는 안압 측정이 가능하다.
Abstract
Purpose: To investigate the accuracy of intraocular pressure (IOP) measurement through a plano soft contact lens (SCL)in situ by a noncontact tonometer (NCT) and a rebound tonometer (RBT). Methods: The IOP of 66 eyes of 33 subjects with no ocular pathology was measured by NCT (tonometer CT-80, TOPCON,Japan) and RBT (iCare rebound tonometryTM, Tiolat Oy, Finland). IOP measurement was repeated through plano SCL (ACUVUE OASYS®, Johnson & Johnson Vision Care Inc., USA) in situ. Statistical analysis was performed using the paired t-test. Results: Mean IOP measured by NCT was 13.10 ± 2.52 mmHg without SCL and 12.95 ± 2.56 mmHg with SCL. Mean IOP measured by RBT was 14.13 ± 2.94 mmHg without SCL and 13.84 ± 2.75 mmHg with SCL. No significant statistical differences were found between IOP measured with and without SCL (p=0.47, p=0.11 respectively). Conclusions: Reliable measurement of IOP by NCT and RBT can be achieved through plano SCL.
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