| Changes in Optic Nerve Parameter Measurements on Spectral-Domain Optical Coherence Tomography, after Cataract Surgery. |
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Kyung Sik Lee, Yong Min Kim, Ji Hyun Kim, Ji Min Ahn, Woo Suk Chung, Jung Bum Choi, Kyoung Soo Park |
1Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea.
2Siloam Eye Hospital, Seoul, Korea. march789@siloam.co.kr |
| 백내장 수술 후 스펙트럼영역 빛간섭단층촬영에서 나타나는 시신경 지표 변화 |
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이경식1⋅김용민2⋅김지현2⋅안지민2⋅정우석2⋅최정범2⋅박경수2 |
Department of Ophthalmology, Yonsei University College of Medicine1, Seoul, Korea
Siloam Eye Hospital2, Seoul, Korea |
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| Abstract |
PURPOSE
To assess changes in peripapillary retinal nerve fiber layer (RNFL) thickness and optic nerve head parameters after cataract surgery by using spectral-domain optical coherence tomography (OCT). METHODS: Twenty-nine eyes of 26 patients, who underwent cataract surgery, were imaged with spectral-domain OCT before and after surgery to measure peripapillary RNFL thickness and optic nerve head parameters, signal strength (SS), quadrant, 12 clock-hour RNFL thickness, rim area, disc area, cup/disc area ratio, vertical cup/disc ratio, and cup volume. RESULTS: The postoperative RNFL thickness and SS were higher than before surgery (p < 0.05). Regarding optic nerve head parameters, rim area was 0.07 +/- 0.10 mm2 higher than before surgery and disc area, cup/disc area ratio, vertical cup/disc ratio, cup volume were 0.07 +/- 0.15 mm2, 0.04 +/- 0.04, 0.03 +/- 0.05, 0.04 +/- 0.06 mm3, respectively, lower than before surgery (p < 0.05). CONCLUSIONS: Cataracts may decrease peripapillary RNFL thickness measurement and SS on OCT scans and change other optic nerve head parameters. Peripapillary RNFL thickness and optic nerve head parameter measurements should be interpreted with caution in eyes with significant cataracts. |
| Key Words:
Cataract surgery;Optical coherence tomography;Optic nerve |
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