Influence of posterior capsular opacity and its removal on retinal nerve fiber layer thickness measured with spectral domain optical coherence tomography
AIM:To investigate the influence of posterior capsular opacity(PCO)and its removal on retinal nerve fiber layer(RNFL)thickness measured with spectral domain optical coherence tomography(SD-OCT).<p>METHODS: Fifty patients underwent RNFL measurements using SD-OCT before and after Nd: YAG laser p...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Press of International Journal of Ophthalmology (IJO PRESS)
2017-02-01
|
| Series: | Guoji Yanke Zazhi |
| Subjects: | |
| Online Access: | http://ies.ijo.cn/cn_publish/2017/2/201702004.pdf |
| Summary: | AIM:To investigate the influence of posterior capsular opacity(PCO)and its removal on retinal nerve fiber layer(RNFL)thickness measured with spectral domain optical coherence tomography(SD-OCT).<p>METHODS: Fifty patients underwent RNFL measurements using SD-OCT before and after Nd: YAG laser posterior capsulotomy. The patients were divided into groups according to the value of signal to noise ratio(SNR)measured by SD-OCT as group 1: SNR 3 and 4, group 2: SNR 5 and 6 and group 3: SNR 7 and 8. The other eye served as control(control group).<p>RESULTS: The mean BCVA, SNR and RNFL measurements significantly increased in eyes underwent Nd: YAG laser capsulotomy. The preoperative and postoperative mean BCVA, SNR and RNFL measurements were significantly different in group 1 and group 2. Although the preoperative and postoperative mean BCVA and SNR were significantly different, the preoperative and postoperative RNFL thickness weren't significantly different in group 3.<p>DISCUSSION: PCO has an influence on OCT image quality. SNR improved in all cases after removal of the PCO. However, RNFL thickness significantly improved after Nd:YAG laser capsulotomy in patients with preoperative SNR under 7. |
|---|---|
| ISSN: | 1672-5123 1672-5123 |