Tags

Type your tag names separated by a space and hit enter

Comparison of optic nerve head topography and retinal nerve fiber layer in eyes with narrow angles versus eyes from a normal open angle cohort - a pilot study.
Curr Eye Res. 2012 Jul; 37(7):592-8.CE

Abstract

PURPOSE

To compare the optic nerve head (ONH) and retinal nerve fiber layer (RNFL) in eyes with narrow angles and normal intraocular pressure (IOP) to normal control eyes.

MATERIALS AND METHODS

A total of 70 eyes of 52 subjects with narrow angles and 40 eyes of 34 normal subjects were enrolled. Narrow angle eyes were defined as the following: (i) the pigmented trabecular meshwork was not visible for ≥ 180° on gonioscopy, (ii) untreated IOP ≤ 21 mmHg, (iii) no peripheral anterior synechiae (PAS) was observed, and (iv) optic discs were without glaucomatous changes, defined as neuroretinal rim thinning, focal notching, disc hemorrhages, or focal RNFL defects. ONH and peripapillary RNFL imaging were obtained with Heidelberg Retina Tomograph (HRT II) and Fourier-domain optical coherence tomography (RTVue OCT).

RESULTS

No significant difference was found in mean age between the two groups (p = 0.06), but the narrow angle group had significantly more women (p = 0.04). The narrow angle group had significantly higher IOP and smaller mean angle width (both p < 0.001). Vertical cup-to-disc ratio (VCDR) was significantly larger in the narrow angle group (p = 0.02). In visual field (VF) results, the mean deviation (MD) was significantly lower and pattern standard deviation (PSD) was significantly higher in the narrow angle group (both p < 0.001). After adjusting for disc area, the RNFL thickness of the inferior-temporal region was significantly thinner in the narrow angle group (135 ± 21.7 µm) compared with normal group (149 ± 22.1 µm, p < 0.01). This finding remained significant after Bonferroni correction for multiple comparisons. Smaller angle width was a significant predictor of RNFL thinning in the inferior-temporal region (p < 0.001).

CONCLUSION

These data suggest that eyes with narrow angles may develop glaucomatous optic nerve damage in the absence of IOP elevation during office hours.

Authors+Show Affiliations

Department of Ophthalmology, San Francisco School of Medicine, University of California, San Francisco , CA , USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22559281

Citation

Chen, Yi-Chun, et al. "Comparison of Optic Nerve Head Topography and Retinal Nerve Fiber Layer in Eyes With Narrow Angles Versus Eyes From a Normal Open Angle Cohort - a Pilot Study." Current Eye Research, vol. 37, no. 7, 2012, pp. 592-8.
Chen YC, Huang G, Kasuga T, et al. Comparison of optic nerve head topography and retinal nerve fiber layer in eyes with narrow angles versus eyes from a normal open angle cohort - a pilot study. Curr Eye Res. 2012;37(7):592-8.
Chen, Y. C., Huang, G., Kasuga, T., Porco, T., Hung, P. T., Lee, R., & Lin, S. C. (2012). Comparison of optic nerve head topography and retinal nerve fiber layer in eyes with narrow angles versus eyes from a normal open angle cohort - a pilot study. Current Eye Research, 37(7), 592-8. https://doi.org/10.3109/02713683.2012.658592
Chen YC, et al. Comparison of Optic Nerve Head Topography and Retinal Nerve Fiber Layer in Eyes With Narrow Angles Versus Eyes From a Normal Open Angle Cohort - a Pilot Study. Curr Eye Res. 2012;37(7):592-8. PubMed PMID: 22559281.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of optic nerve head topography and retinal nerve fiber layer in eyes with narrow angles versus eyes from a normal open angle cohort - a pilot study. AU - Chen,Yi-Chun, AU - Huang,Guofu, AU - Kasuga,Toshimitsu, AU - Porco,Travis, AU - Hung,Por T, AU - Lee,Roland, AU - Lin,Shan C, Y1 - 2012/05/04/ PY - 2012/5/8/entrez PY - 2012/5/9/pubmed PY - 2012/9/5/medline SP - 592 EP - 8 JF - Current eye research JO - Curr. Eye Res. VL - 37 IS - 7 N2 - PURPOSE: To compare the optic nerve head (ONH) and retinal nerve fiber layer (RNFL) in eyes with narrow angles and normal intraocular pressure (IOP) to normal control eyes. MATERIALS AND METHODS: A total of 70 eyes of 52 subjects with narrow angles and 40 eyes of 34 normal subjects were enrolled. Narrow angle eyes were defined as the following: (i) the pigmented trabecular meshwork was not visible for ≥ 180° on gonioscopy, (ii) untreated IOP ≤ 21 mmHg, (iii) no peripheral anterior synechiae (PAS) was observed, and (iv) optic discs were without glaucomatous changes, defined as neuroretinal rim thinning, focal notching, disc hemorrhages, or focal RNFL defects. ONH and peripapillary RNFL imaging were obtained with Heidelberg Retina Tomograph (HRT II) and Fourier-domain optical coherence tomography (RTVue OCT). RESULTS: No significant difference was found in mean age between the two groups (p = 0.06), but the narrow angle group had significantly more women (p = 0.04). The narrow angle group had significantly higher IOP and smaller mean angle width (both p < 0.001). Vertical cup-to-disc ratio (VCDR) was significantly larger in the narrow angle group (p = 0.02). In visual field (VF) results, the mean deviation (MD) was significantly lower and pattern standard deviation (PSD) was significantly higher in the narrow angle group (both p < 0.001). After adjusting for disc area, the RNFL thickness of the inferior-temporal region was significantly thinner in the narrow angle group (135 ± 21.7 µm) compared with normal group (149 ± 22.1 µm, p < 0.01). This finding remained significant after Bonferroni correction for multiple comparisons. Smaller angle width was a significant predictor of RNFL thinning in the inferior-temporal region (p < 0.001). CONCLUSION: These data suggest that eyes with narrow angles may develop glaucomatous optic nerve damage in the absence of IOP elevation during office hours. SN - 1460-2202 UR - https://www.unboundmedicine.com/medline/citation/22559281/Comparison_of_optic_nerve_head_topography_and_retinal_nerve_fiber_layer_in_eyes_with_narrow_angles_versus_eyes_from_a_normal_open_angle_cohort___a_pilot_study_ L2 - http://www.tandfonline.com/doi/full/10.3109/02713683.2012.658592 DB - PRIME DP - Unbound Medicine ER -