Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery?
We present novel clinical observations on negative dysphotopsia (ND) in eyes that have undergone cataract surgery. In the past, shadow effects were alleged to be located in the far peripheral temporal visual field 50° to 100° away from the optical axis. In a small series of eight patients we found e...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2015/786579 |
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| _version_ | 1832564254699421696 |
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| author | Martin Wenzel Rupert Menapace Timo Eppig Achim Langenbucher |
| author_facet | Martin Wenzel Rupert Menapace Timo Eppig Achim Langenbucher |
| author_sort | Martin Wenzel |
| collection | DOAJ |
| description | We present novel clinical observations on negative dysphotopsia (ND) in eyes that have undergone cataract surgery. In the past, shadow effects were alleged to be located in the far peripheral temporal visual field 50° to 100° away from the optical axis. In a small series of eight patients we found evidence of photic effects, described by the patients as shadows in the periphery that were objectively located much more centrally. In all cases, we could find an association of these phenomena with the blind spot. We hypothesize that the memory effect of the blind spot which is dislocated and changed in magnification due to replacement of the crystalline lens could be one determinant for pseudophakic ND. The scotoma of the optic nerve head and the main arteries and veins of the phakic eye are displaced in the pseudophakic eye depending on the specific characteristics and position of the intraocular lens within the eye. |
| format | Article |
| id | doaj-art-3664d20745054abc980c439c7f5a1329 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-3664d20745054abc980c439c7f5a13292025-02-03T01:11:29ZengWileyJournal of Ophthalmology2090-004X2090-00582015-01-01201510.1155/2015/786579786579Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery?Martin Wenzel0Rupert Menapace1Timo Eppig2Achim Langenbucher3Eye Clinic Petrisberg, Max-Planck-Straße 14–16, 54296 Trier, GermanyUniversity Eye Clinic, Währinger Gürtel 18-20, 1090 Vienna, AustriaDepartment of Experimental Ophthalmology, Saarland University, Kirrberger Straße 100, Building 22, 66424 Homburg/Saar, GermanyDepartment of Experimental Ophthalmology, Saarland University, Kirrberger Straße 100, Building 22, 66424 Homburg/Saar, GermanyWe present novel clinical observations on negative dysphotopsia (ND) in eyes that have undergone cataract surgery. In the past, shadow effects were alleged to be located in the far peripheral temporal visual field 50° to 100° away from the optical axis. In a small series of eight patients we found evidence of photic effects, described by the patients as shadows in the periphery that were objectively located much more centrally. In all cases, we could find an association of these phenomena with the blind spot. We hypothesize that the memory effect of the blind spot which is dislocated and changed in magnification due to replacement of the crystalline lens could be one determinant for pseudophakic ND. The scotoma of the optic nerve head and the main arteries and veins of the phakic eye are displaced in the pseudophakic eye depending on the specific characteristics and position of the intraocular lens within the eye.http://dx.doi.org/10.1155/2015/786579 |
| spellingShingle | Martin Wenzel Rupert Menapace Timo Eppig Achim Langenbucher Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery? Journal of Ophthalmology |
| title | Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery? |
| title_full | Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery? |
| title_fullStr | Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery? |
| title_full_unstemmed | Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery? |
| title_short | Is the Memory Effect of the Blind Spot Involved in Negative Dysphotopsia after Cataract Surgery? |
| title_sort | is the memory effect of the blind spot involved in negative dysphotopsia after cataract surgery |
| url | http://dx.doi.org/10.1155/2015/786579 |
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