J Korean Ophthalmol Soc > Volume 53(6); 2012 > Article
Journal of the Korean Ophthalmological Society 2012;53(6):761-766.
DOI: https://doi.org/10.3341/jkos.2012.53.6.761    Published online June 15, 2012.
Effects of Transient Prone Position on Vault and Anterior Chamber Angle in ICL Implanted Patients.
Wook Kyum Kim, Ik Hee Ryu, Jin Kuk Kim, Hun Yang
B&VIIT Eye Center, Seoul, Korea. hunny502@hanmail.net
ICL 삽입술 후 일시적인 엎드린 자세가 Vaulting과 전방각에 미치는 영향
김욱겸⋅류익희⋅김진국⋅양 훈
B&VIIT Eye Center, Seoul, Korea
Abstract
PURPOSE
To evaluate the effects of transient prone position on vault and anterior chamber angle parameters in ICL implanted patients. METHODS: 40 eyes of 20 ICL implanted patients with at least 1 month of follow-up were included in the present study. The central ICL vault and anterior chamber parameters including angle opening distance at 500 (AOD500) were measured with the Visante anterior segment optical coherence tomography (OCT) (Carl Zeiss, Dublin, CA) in both the sitting and prone positions by tilting the OCT 90 degrees in the vertical axis and having the patient fixate downwards towards the floor. RESULTS: The mean central vault was 0.55 +/- 0.21 mm (SD) and 0.59 +/- 0.21 mm (SD) in the sitting and prone positions, respectively (p < 0.0001). The nasal and temporal AOD500 were 0.26 +/- 0.11 mm and 0.28 +/- 0.08 mm, respectively in the sitting position, which decreased to 0.24 +/- 0.10 mm and 0.26 +/- 0.08 mm in the prone position, however, both were not statistically significant (p = 0.08, p = 0.09). AOD500 was inversely correlated with vault (r = -0.47; p = 0.0024). There were no significant correlations between increase of vault and anterior chamber depth or white to white nor ICL vault. CONCLUSIONS: Transient prone positioning of ICL implanted patients can induce a significant increase in ICL vault.
Key Words: Angle opening distance 500;Implantable collamer lens;Phakic intraocular lens;Position change;Vaulting


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