Choroidal neovascularization
Abstract
Purpose To review clinicopathologic findings of choroidal neovascularization (CNV) in a historical framework with emphasis on pathobiology and correlation with treatment.Design Selective literature review combined with authors' experience.Results Choroidal neovascularization represents a stereotypic, nonspecific response to a specific stimulus. Although CNV differs among patients, the general growth patterns are subretinal pigment epithelium (type 1), subretinal (type 2), or combined. Choroidal neovascularization occurs over time in dynamic stages of initiation, active and involutional. Treatments are now being designed based on modern understanding of CNV growth.Conclusions Progress continues to be made concerning understanding the pathobiology and treatment of CNV.
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In choroidal neovascularization, vessels eventually break through the RPE, resulting in severe clinical phenotypes including neovascular AMD, hemorrhagic AMD, and disciform AMD.
“These vessels eventually break through the RPE (60), resulting in severe clinical phenotypes including (a) neovascular AMD, where lipid-rich fluid accumulates under the RPE and/or neural retina; (b) hemorrhagic AMD, where blood breaks through the RPE into the subretinal space; and (c) disciform AMD, where fibrous tissue with NV and altered RPE proliferates and replaces neural retina.”
From Unraveling a Multifactorial Late-Onset Disease: From Genetic Susceptibility to Disease Mechanisms for Age-Related Macular Degeneration (2009) · cites this paper as [60]
Early choroidal neovascularisation occurs under the retinal pigment epithelium, eventually breaking through to develop exudative, haemorrhagic, or disciform age-related macular degeneration.
“Early choroidal neovascularisation occurs under the retinal pigment epithelium,133,134 eventually breaking through135 to develop exudative, haemorrhagic, or disciform age-related macular degeneration (figure 6).”
From Age-related macular degeneration (2008) · cites this paper as [135]
Cites
(2001) · Archives of Ophthalmology · doi:10.1001/archopht.119.10.1417 · Cited by 3,285 · see citing works
Treatment of Age-related Macular Degeneration With Photodynamic Therapy (TAP) Study Group (1999) · Archives of Ophthalmology · doi:10.1001/archopht.117.10.1329 · Cited by 2,192 · see citing works
Flk1-positive cells derived from embryonic stem cells serve as vascular progenitors
Yamashita, J. K., Itoh, H., Hirashima, M., Ogawa, M., Nishikawa, S., Yurugi, T., Naito, M., Nakao, K., & Nishikawa, S.-I. (2000) · Nature · doi:10.1038/35040568 · Cited by 1,345 · see citing works
Age-related macular degeneration: etiology, pathogenesis, and therapeutic strategies
Ambati, J., Ambati, B. K., Yoo, S. H., Ianchulev, S., & Adamis, A. P. (2003) · Survey of Ophthalmology · doi:10.1016/s0039-6257(03)00030-4 · Cited by 959 · see citing works
Ageing and degeneration in the macular region: A clinico-pathological study
Sarks, S. H. (1976) · British Journal of Ophthalmology · doi:10.1136/bjo.60.5.324 · Cited by 891 · see citing works
Age-related Macular Degeneration Histopathologic Studies
Green, W. R., & Enger, C. (1993) · Ophthalmology · doi:10.1016/s0161-6420(93)31466-1 · Cited by 757 · see citing works
Self-citationGrant, M. B., May, W. S., Caballero, S., Brown, G. A. J., Guthrie, S. M., Mames, R. N., Byrne, B. J., Vaught, T., Spoerri, P. E., Peck, A. B., et al. (2002) · Nature Medicine · doi:10.1038/nm0602-607 · Cited by 664 · see citing works
Hattori, K., Heissig, B., Wu, Y. L., Dias, S., Tejada, R., Ferris, B., Hicklin, D. J., Zhu, Z., Böhlen, P., Witte, L., et al. (2002) · Nature Medicine · doi:10.1038/nm740 · Cited by 632 · see citing works
Kvanta, A., Algvere, P. V., Berglin, L., & Seregard, S. (1996) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(14)70522-7 · Cited by 622 · see citing works
Drusen and Disciform Macular Detachment and Degeneration
Gass, J. D. M. (1973) · Archives of Ophthalmology · doi:10.1001/archopht.1973.01000050208006 · Cited by 593 · see citing works
Krzystolik, M. G. (2002) · Archives of Ophthalmology · doi:10.1001/archopht.120.3.338 · Cited by 592 · see citing works
Lopez, P. F., Sippy, B., Lambert, H. M., Thach, A. B., & Hinton, D. R. (1998) · Retina · doi:10.1097/00006982-199805000-00035 · Cited by 592 · see citing works
Photodynamic therapy of subfoveal choroidal neovascularization in pathologic myopia with verteporfin
(2001) · Ophthalmology · doi:10.1016/s0161-6420(01)00544-9 · Cited by 543 · see citing works
Grossniklaus, H. E., Ling, J. X., Wallace, T. M., Dithmar, S., Lawson, D., Cohen, C., Elner, V. M., Elner, S. G., & Sternberg, P. (2002) · PubMed · Cited by 434 · see citing works
Self-citationTHE EYETECH STUDY GROUP (2002) · Retina · doi:10.1097/00006982-200204000-00002 · Cited by 415 · see citing works
Argon Laser Photocoagulation for Senile Macular Degeneration: Results of a Randomized Clinical Trial
(1982) · Archives of Ophthalmology · doi:10.1001/archopht.1982.01030030920003 · Cited by 405 · see citing works
The potential angiogenic role of macrophages in the formation of choroidal neovascular membranes.
Oh, H., Takagi, H., Takagi, C., Suzuma, K., Otani, A., Ishida, K., Matsumura, M., Ogura, Y., & Honda, Y. (1999) · PubMed · Cited by 395 · see citing works
Gass, J. D. M. (1994) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(14)72951-4 · Cited by 353 · see citing works
Pathologic Features of Senile Macular Degeneratlon
Green, W. R., McDonnell, P. J., & Yeo, J. H. (1985) · Ophthalmology · doi:10.1016/s0161-6420(85)33993-3 · Cited by 320 · see citing works
Self-citation(1993) · Archives of Ophthalmology · doi:10.1001/archopht.1993.01090090052019 · Cited by 303 · see citing works
Senile macular degeneration: The involvement of immunocompetent cells
Penfold, P. L., Killingsworth, M. C., & Sarks, S. H. (1985) · Graefe s Archive for Clinical and Experimental Ophthalmology · doi:10.1007/bf02150948 · Cited by 294 · see citing works
New vessel formation beneath the retinal pigment epithelium in senile eyes.
Sarks, S. H. (1973) · British Journal of Ophthalmology · doi:10.1136/bjo.57.12.951 · Cited by 256 · see citing works
Elner, V. M., Strieter, R. M., Elner, V. M., Baggiolini, M., Lindley, I. J. D., & Kunkel, S. L. (1990) · Europe PMC (PubMed Central) · Cited by 233 · see citing works
de Juan, E., Loewenstein, A., Bressler, N. M., & Alexander, J. (1998) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(98)00018-x · Cited by 232 · see citing works
Ophthalmic Pathology: An Atlas and Textbook
Perlman, J. I. (1996) · JAMA · doi:10.1001/jama.1996.03540220071036 · Cited by 231 · see citing works
Lopez, P. F., Grossniklaus, H. E., Lambert, H. M., Aaberg, T. M., Capone, A., Sternberg, P., & L'Hernault, N. L. (1991) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(14)77270-8 · Cited by 230 · see citing works
Self-citationGrossniklaus, H., & Gass, J. D. M. (1998) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(98)00145-7 · Cited by 226 · see citing works
Self-citationVitreous Surgery for Hemorrhagic and Fibrous Complications of Age-Related Macular Degeneration
de Juan, E., & Machemer, R. (1988) · American Journal of Ophthalmology · doi:10.1016/0002-9394(88)90116-x · Cited by 224 · see citing works
Sorsby, A., Mason, M. E. J., & Gardener, N. (1949) · British Journal of Ophthalmology · doi:10.1136/bjo.33.2.67 · Cited by 224 · see citing works
DRUSEN AND THEIR RELATIONSHIP TO SENILE MACULAR DEGENERATION
Sarks, S. H. (1980) · Australian and New Zealand Journal of Ophthalmology · doi:10.1111/j.1442-9071.1980.tb01670.x · Cited by 219 · see citing works
Surgical Excision of Subfoveal Neovascular Membranes in Age-related Macular Degeneration
Lambert, H. M., Capone, A., Aaberg, T. M., et al. (1992) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(14)71576-4 · Cited by 207 · see citing works
Matrix metalloproteinases and metalloproteinase inhibitors in choroidal neovascular membranes.
Steén, B., Sejersen, S. S., Berglin, L., Seregard, S., & Kvanta, A. (1998) · PubMed · Cited by 183 · see citing works
Surgical Removal of Subfoveal Neovascularization in the Presumed Ocular Histoplasmosis Syndrome
Thomas, M. A., & Kaplan, H. J. (1991) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(14)76888-6 · Cited by 183 · see citing works
Ciulla, T. A. (2001) · Archives of Ophthalmology · doi:10.1001/archopht.119.3.399 · Cited by 182 · see citing works
Clinicopathologic Features of Surgically Excised Choroidal Neovascular Membranes
Grossniklaus, H. E., Hutchinson, A. K., Capone, A., Woolfson, J. M., & Lambert, H. M. (1994) · Ophthalmology · doi:10.1016/s0161-6420(13)31216-0 · Cited by 181 · see citing works
Self-citationPenfold, P. L., Wen, L., Madigan, M. C., Gillies, M. C., King, N. J. C., & Provis, J. M. (2000) · Clinical & Experimental Immunology · doi:10.1046/j.1365-2249.2000.01316.x · Cited by 166 · see citing works
Granulomatous reaction to Bruch's membrane in age-related macular degeneration
Dastgheib, K. (1994) · Archives of Ophthalmology · doi:10.1001/archopht.1994.01090180111045 · Cited by 162 · see citing works
Histopathologic and Ultrastructural Findings of Surgically Excised Choroidal Neovascularization
Grossniklaus, H. E. (1998) · Archives of Ophthalmology · doi:10.1001/archopht.116.6.745 · Cited by 145 · see citing works
Self-citationPATHOGENESIS OF DISCIFORM DEGENERATION OF THE MACULA
VERHOEFF, F. H., & GROSSMAN, H. P. (1937) · Archives of Ophthalmology · doi:10.1001/archopht.1937.00850100073008 · Cited by 142 · see citing works
GROSSNIKLAUS, H. E., Martinez, J. A., Brown, V., LAMBERT, H. M., Sternberg, P., Capone, A., Aaberg, T. M., & Lopez, P. F. (1992) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(14)71859-8 · Cited by 133 · see citing works
Self-citationGreen, W. R., & Wilson, D. J. (1986) · Ophthalmology · doi:10.1016/s0161-6420(86)33609-1 · Cited by 129 · see citing works
Self-citationPathogenesis of disciform detachment of the neuroepithelium. I. General concepts and classification
Gass, J. D. M. (1967) · American Journal of Ophthalmology · Cited by 122 · see citing works
Lafaut, B. A. (2000) · British Journal of Ophthalmology · doi:10.1136/bjo.84.3.239 · Cited by 119 · see citing works
MPhil, P. P., BSppSc, M. K., & Sarks, S. H. (1984) · Australian Journal of Opthalmology · doi:10.1111/j.1442-9071.1984.tb01120.x · Cited by 115 · see citing works
Ranson, N. (2002) · British Journal of Ophthalmology · doi:10.1136/bjo.86.5.527 · Cited by 108 · see citing works
REDDY, V. M., Zamora, R. L., & Kaplan, H. J. (1995) · American Journal of Ophthalmology · doi:10.1016/s0002-9394(14)72158-0 · Cited by 104 · see citing works
Argon Laser Photocoagulation for Ocular Histoplasmosis
(1983) · Archives of Ophthalmology · doi:10.1001/archopht.1983.01040020349002 · Cited by 104 · see citing works
(1990) · Archives of Ophthalmology · doi:10.1001/archopht.1990.01070080067037 · Cited by 99 · see citing works
The Anecortave Acetate Clinical Study Group (2003) · Retina · doi:10.1097/00006982-200302000-00003 · Cited by 97 · see citing works
Senile Disciform Degeneration of the Macula
Green, W. R. (1971) · Archives of Ophthalmology · doi:10.1001/archopht.1971.01000010489001 · Cited by 94 · see citing works
Self-citationMACULAR TRANSLOCATION WITH 360-DEGREE PERIPHERAL RETINECTOMY
Toth, C. A., & Freedman, S. F. (2001) · Retina · doi:10.1097/00006982-200108000-00001 · Cited by 94 · see citing works
Subfoveal Choroidal Neovascularization in Punctate Inner Choroidopathy
Olsen, T. W., Capone, A., Sternberg, P., et al. (1996) · Ophthalmology · doi:10.1016/s0161-6420(96)30387-4 · Cited by 88 · see citing works
Bressler, S. B. (1992) · Archives of Ophthalmology · doi:10.1001/archopht.1992.01080180099035 · Cited by 80 · see citing works
Gehlbach, P. L., Demetriades, A. M., Yamamoto, S., Deering, T. G., Duh, E. J., Yang, H. S., Cingolani, C., Lai, H. C., Wei, L. L., & Campochiaro, P. A. (2003) · Gene Therapy · doi:10.1038/sj.gt.3301931 · Cited by 76 · see citing works
Grossniklaus, H. E. (2000) · Archives of Ophthalmology · doi:10.1001/archopht.118.5.625 · Cited by 76 · see citing works
Self-citationArgon Laser Photocoagulation for Idiopathic Neovascularization
(1983) · Archives of Ophthalmology · doi:10.1001/archopht.1983.01040020360003 · Cited by 76 · see citing works
Stereoscopic Atlas of Macular Diseases
Henkind, P. (1971) · American Journal of Ophthalmology · doi:10.1016/0002-9394(71)90608-8 · Cited by 75 · see citing works
Recent advances in the treatment of senile disciform macular degeneration by photocoagulation.
Bird, A. C. (1974) · British Journal of Ophthalmology · doi:10.1136/bjo.58.4.367 · Cited by 72 · see citing works
Small, M. L. (1976) · Archives of Ophthalmology · doi:10.1001/archopht.1976.03910030287008 · Cited by 68 · see citing works
Luttun, A., Dewerchin, M. A., Collen, D., et al. (2000) · Current Atherosclerosis Reports · doi:10.1007/s11883-000-0079-z · Cited by 67 · see citing works
CLINICOPATHOLOGIC STUDIES OF TREATED CHOROIDAL NEOVASCULAR MEMBRANES
Green, W. R. (1991) · Retina · doi:10.1097/00006982-199111030-00010 · Cited by 66 · see citing works
Self-citationExpression of transforming growth factor-ß mRNA in experimental choroidal neovascularization
Ogata, N., Yamamoto, C., Miyashiro, M., Yamada, H., Matsushima, M., & Uyama, M. (1997) · Current Eye Research · doi:10.1076/ceyr.16.1.9.5121 · Cited by 62 · see citing works
Saxe, S. J. (1993) · Archives of Ophthalmology · doi:10.1001/archopht.1993.01090010092033 · Cited by 58 · see citing works
Choroidal neovascular membranes--their visualization and treatment.
Gass, J. D. M. (1973) · PubMed · Cited by 56 · see citing works
CLINICOPATHOLOGIC STUDIES OF AN EYE AFTER SUBMACULAR MEMBRANECTOMY FOR CHOROIDAL NEOVASCULARIZATION
Hsu, J. K., THOMAS, M. A., Ibanez, H. E., et al. (1995) · Retina · doi:10.1097/00006982-199515010-00009 · Cited by 53 · see citing works
Fundus Dystrophy with Unusual Features : A Histological Study
Ashton, N., & Sorsby, A. (1951) · British Journal of Ophthalmology · doi:10.1136/bjo.35.12.751 · Cited by 52 · see citing works
Rosa, R. H. (1996) · Archives of Ophthalmology · doi:10.1001/archopht.1996.01100130476025 · Cited by 41 · see citing works
Argon and ruby laser photocoagulation of disciform macular disease.
L'Espérance, F. A. (1971) · PubMed · Cited by 38 · see citing works
(1989) · Archives of Ophthalmology · doi:10.1001/archopht.1989.01070010354023 · Cited by 38 · see citing works
Photocoagulation in Disciform Macular Degeneration
Jepson, C. N., & Wetzig, P. C. (1969) · American Journal of Ophthalmology · doi:10.1016/0002-9394(69)90087-7 · Cited by 31 · see citing works
ULTRASTRUCTURAL FEATURES OF SURGICALLY EXCISED IDIOPATHIC SUBFOVEAL NEOVASCULAR MEMBRANES
Thomas, J. W., GROSSNIKLAUS, H. E., Lambert, H. M., et al. (1993) · Retina · doi:10.1097/00006982-199313020-00001 · Cited by 30 · see citing works
Self-citationLee, B. L., Lim, J. I., & Grossniklaus, H. E. (1996) · Retina · doi:10.1097/00006982-199616010-00011 · Cited by 20 · see citing works
Self-citationLight coagulation for hemorrhagic disciform degeneration of the macula.
Watzke, R. C., & Snyder, W. B. (1968) · PubMed · Cited by 18 · see citing works
Grossniklaus, H. E., Brooks, H. L., Sippy, B. D., & LIU, P. (2002) · Retina · doi:10.1097/00006982-200212000-00027 · Cited by 17 · see citing works
Self-citationSchatz, H. (1973) · Archives of Ophthalmology · doi:10.1001/archopht.1973.01000050199004 · Cited by 12 · see citing works
Holloway, T. B., & Verhoeff, F. H. (1928) · Europe PMC (PubMed Central) · Cited by 8 · see citing works
Espinosa, D. G., Caicedo, A., Hernandez, E. P., et al. (2003) · Investigative Ophthalmology & Visual Science · Cited by 4 · see citing works
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Jager, R. D., Mieler, W. F., & Miller, J. W. (2008) · New England Journal of Medicine · doi:10.1056/nejmra0801537 · Cited by 1,379 · see citing works
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Spaide, R. F., Jaffe, G. J., Sarraf, D., Freund, K. B., Sadda, S. R., Staurenghi, G., Waheed, N. K., Chakravarthy, U., Rosenfeld, P. J., Holz, F. G., et al. (2020) · Ophthalmology · doi:10.1016/j.ophtha.2019.11.004 · Cited by 824 · see citing works
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Malek, G., Johnson, L. V., Mace, B. E., Saloupis, P., Schmechel, D. E., Rickman, D. W., Toth, C. A., Sullivan, P. M., & Rickman, C. B. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0503015102 · Cited by 284 · see citing works
Swaroop, A., Chew, E. Y., Bowes Rickman, C., & Abecasis, G. R. (2009) · Annual Review of Genomics and Human Genetics · doi:10.1146/annurev.genom.9.081307.164350 · Cited by 270 · see citing works
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Vogt, S. D., Curcio, C. A., Wang, L., Li, C.-M., McGwin, G., Medeiros, N. E., Philp, N. J., Kimble, J. A., & Read, R. W. (2011) · Experimental Eye Research · doi:10.1016/j.exer.2011.06.002 · Cited by 104 · see citing works
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Chung, M., Lee, S., Lee, B. J., Son, K., Jeon, N. L., & Kim, J. H. (2018) · Advanced Healthcare Materials · doi:10.1002/adhm.201700028 · Cited by 105 · see citing works
Indaram, M., Ma, W., Zhao, L., Fariss, R. N., Rodriguez, I. R., & Wong, W. T. (2015) · Scientific Reports · doi:10.1038/srep09144 · Cited by 101 · see citing works
Grossniklaus, H. E., Wilson, D. J., Bressler, S. B., Bressler, N. M., Toth, C. A., Green, W. R., & Miskala, P. (2006) · American Journal of Ophthalmology · doi:10.1016/j.ajo.2005.07.076 · Cited by 33 · see citing works
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- Authors
- Grossniklaus, H. E., & Green, W. R.
- Affiliations
- Emory University (US)
- Johns Hopkins University (US)
- Corresponding author
- Grossniklaus, Hans E.
- Venue
- American Journal of Ophthalmology
- Publisher
- Elsevier BV
- Published
- 2004-03
- Volume
- 137
- Issue
- 3
- Pages
- 496-503
- ISSN
- 0002-9394 (ISSN-L)
- OpenAlex
- W4233657213
- Semantic Scholar
- d23b181b1572296b7f9ccedf26a00eb54dea0824
- Cited by
- 469
- References
- 77
- Citations by year
- 2026: 15 · 2025: 16 · 2024: 26 · 2023: 23 · 2022: 28 · 2021: 39 · 2020: 50 · 2019: 25 · 2018: 23 · 2017: 18 · 2016: 23 · 2015: 28 · 2014: 18 · 2013: 20 · 2012: 19
- FWCI
- 3.32
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Ophthalmology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- U.S. Public Health Service (U10 13165)
- National Eye Institute (P-30-EY06360, P30EY006360)
- Topics
- Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
- Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Retinal and Macular Surgery
- Keywords
- choroidal neovascularization, pathobiology, clinicopathological correlation, subretinal pigment epithelium, subretinal neovascularization, age-related macular degeneration
- MeSH terms
- Humans, Choroidal Neovascularization
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