Effect of repeated intravitreal anti-vascular endothelial growth factor drugs on corneal nerves
Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc..
To investigate the potential effect of repeated intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) drugs on corneal nerves. A total of 64 patients were treated with intravitreal injection of anti-VEGF drugs. There were 19 cases of neovascular age-related macular degeneration (AMD), 20 cases of diabetic macular edema (DME) and 25 cases of retinal vein occlusion (RVO). Twenty-nine cases were treated with aflibercept (2 mg/0.05 mL) whereas 35 cases were managed with ranibizumab (0.5 mg/0.05 mL). A corneal confocal microscope was used to collect images of corneal subbasal nerve plexus, and Image J was used for image analysis. The changes in corneal nerve were compared between 1 month after each injection and before injection. There were no significant differences in the density and length of corneal nerve at specific time after the surgery in comparison with baseline in patients who were given 3 intravitreal injections. There was no significant correlation between the numbers of injections and the changes of the corneal nerves. After 3rd injection, the nerve length of the DME group was markedly lower than that of AMD and RVO groups, the difference was statistically significant (P < .05). The nerve density of the DME group was not significantly different from that of AMD and RVO groups, whereas the nerve length and nerve density of the AMD and RVO groups were not statistically significant between each other also. The corneal nerve length after the 2nd and 3rd injections of Aflibercept were lower than that before surgery, the difference was statistically significant. There were no significant differences in nerve density and nerve length at each time point after Ranibizumab injection. The length and density of the corneal nerve after multiple injections in contralateral eye displayed no significant changes compared with the baseline. Repeated intravitreal anti-VEGF drug can reduce the length of corneal nerves. For patients who need repeated intravitreal injections of anti-VEGF drugs, especially in DM, attention should be paid on the changes affecting the corneal nerves. It is also needed to strengthen the local anti-inflammatory therapy to avoid infection and to use artificial tears to protect the microenvironment of the ocular surface after the surgery.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:102 |
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| Enthalten in: |
Medicine - 102(2023), 29 vom: 21. Juli, Seite e34210 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Qi, Yuanyuan [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 24.07.2023 Date Revised 23.11.2023 published: Print Citation Status MEDLINE |
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| doi: |
10.1097/MD.0000000000034210 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a Effect of repeated intravitreal anti-vascular endothelial growth factor drugs on corneal nerves |
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| 520 | |a Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc. | ||
| 520 | |a To investigate the potential effect of repeated intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) drugs on corneal nerves. A total of 64 patients were treated with intravitreal injection of anti-VEGF drugs. There were 19 cases of neovascular age-related macular degeneration (AMD), 20 cases of diabetic macular edema (DME) and 25 cases of retinal vein occlusion (RVO). Twenty-nine cases were treated with aflibercept (2 mg/0.05 mL) whereas 35 cases were managed with ranibizumab (0.5 mg/0.05 mL). A corneal confocal microscope was used to collect images of corneal subbasal nerve plexus, and Image J was used for image analysis. The changes in corneal nerve were compared between 1 month after each injection and before injection. There were no significant differences in the density and length of corneal nerve at specific time after the surgery in comparison with baseline in patients who were given 3 intravitreal injections. There was no significant correlation between the numbers of injections and the changes of the corneal nerves. After 3rd injection, the nerve length of the DME group was markedly lower than that of AMD and RVO groups, the difference was statistically significant (P < .05). The nerve density of the DME group was not significantly different from that of AMD and RVO groups, whereas the nerve length and nerve density of the AMD and RVO groups were not statistically significant between each other also. The corneal nerve length after the 2nd and 3rd injections of Aflibercept were lower than that before surgery, the difference was statistically significant. There were no significant differences in nerve density and nerve length at each time point after Ranibizumab injection. The length and density of the corneal nerve after multiple injections in contralateral eye displayed no significant changes compared with the baseline. Repeated intravitreal anti-VEGF drug can reduce the length of corneal nerves. For patients who need repeated intravitreal injections of anti-VEGF drugs, especially in DM, attention should be paid on the changes affecting the corneal nerves. It is also needed to strengthen the local anti-inflammatory therapy to avoid infection and to use artificial tears to protect the microenvironment of the ocular surface after the surgery | ||
| 650 | 4 | |a Journal Article | |
| 650 | 7 | |a Ranibizumab |2 NLM | |
| 650 | 7 | |a ZL1R02VT79 |2 NLM | |
| 650 | 7 | |a Angiogenesis Inhibitors |2 NLM | |
| 650 | 7 | |a Vascular Endothelial Growth Factor A |2 NLM | |
| 650 | 7 | |a Receptors, Vascular Endothelial Growth Factor |2 NLM | |
| 650 | 7 | |a EC 2.7.10.1 |2 NLM | |
| 650 | 7 | |a Vascular Endothelial Growth Factors |2 NLM | |
| 650 | 7 | |a Recombinant Fusion Proteins |2 NLM | |
| 700 | 1 | |a Cui, Lin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, Chunxiao |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Yao |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Shuang |e verfasserin |4 aut | |
| 700 | 1 | |a Ji, Lili |e verfasserin |4 aut | |
| 700 | 1 | |a Qiu, Yuanyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Lijun |e verfasserin |4 aut | |
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