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Am J Ophthalmol. 2012 Jul;154(1):164-173.e1. doi: 10.1016/j.ajo.2012.01.030. Epub 2012 Apr 26.

Improvement of photoreceptor integrity and associated visual outcome in neovascular age-related macular degeneration.

Author information

1
The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea.

Abstract

PURPOSE:

To evaluate the association between improvement of photoreceptor integrity and visual acuity (VA) after anti-vascular endothelial growth factor (anti-VEGF) injections in neovascular age-related macular degeneration (AMD).

DESIGN:

Retrospective, cross-sectional study.

METHODS:

Eighty-seven eyes of 84 patients who were newly diagnosed with neovascular AMD and treated with anti-VEGF injections were reviewed retrospectively. Using spectral-domain optical coherence tomography, the status of the inner segment/outer segment photoreceptor junction (IS/OS) was graded and classified into 3 groups at baseline and 1 and 2 months after 3 monthly injections. The proportion of the improved IS/OS line after treatment was analyzed and correlated with VA.

RESULTS:

The number of eyes in the IS/OS+ group, representing disrupted IS/OS line less than 200 μm, was increased from 9 (10%) at baseline to 33 (38%) at 1 month. There was a significant difference in the ratio of IS/OS+ group between baseline and 1 month (P < .001). Those in the IS/OS± group, showing focal disrupted IS/OS line between 200 and 800 μm, decreased from 29 (33%) to 22 eyes (25%). Improvement of the IS/OS line at 1 month compared to baseline was noted in 43 eyes (49%) and correlated with better VA (P < .016). No increase of VA was observed in 44 eyes without definite improvement. There was no significant correlation between improvement of the IS/OS line and VA from 1 to 2 months.

CONCLUSIONS:

Assessing the change of the photoreceptor integrity before and after treatment would be a useful indicator to predict initial response to treatment and visual prognosis in patients with neovascular AMD.

PMID:
22541932
DOI:
10.1016/j.ajo.2012.01.030
[Indexed for MEDLINE]

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