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13 What are the different ways in which cataracts are removed? Basically, there are two ways in which a cataract can be removed. In both techniques, the eye is surgically opened. 1 In the "Intracapsular" technique, an enzyme is injected into the front portion of the eye which weakens the zonules (see Figure 1) which hold the lens in place. The entire cataract is then removed from the eye with a cold probe which is brought into contact with the lens capsule (see Figure 5). The probe freezes a portion of the cataract which then sticks to it and enables the surgeon to pull the entire cataract out of the eye. "Intracapsular" means inside the capsule and "intracapsular cataract extraction" means that the cataract is taken out while it is inside the capsule. INTRACAPSULAR Incision in cornea EXTRACAPSULAR Fig. 5 Fig. 6 2 In the "Extracapsular" technique, an opening is made in the front port of the lens capsule and the contents of the capsule are gently removed from the eye leaving an intact back capsule in the eye (see Figure 6). The capsule is clear and allows light to pass through normally. Advantages of leaving the back copsule in the eye ore that it may help prevent retinal detachment and macular edema (swelling of the retina). A disadvantage of extracapsular extraction is that the bock capsule in some eyes may become cloudy months or years after surgery and reduce a person's vision. However, with the use of a laser, vision can be restored by a painless procedure taking only a few minutes and done in your doctor's office. Phacoemulsification is a variation on the extracapsular technique in which a needle-like device producing high frequency sound waves is used to break up the cataract while at the same time sucking it out of the eye. At present, it is generally thought that the extracapsular technique is the best way to remove a cataract. However, there ore exceptions to this and your surgeon will decide which is best for your particular eye. 14 What is a lens implant? A lens implant (intraocular lens or lOL) is a man-mode, tiny, clear, plastic device which is placed inside the eye ot the time the cataract is removed, natural lens and remains permanently within the eye. replaces the 654 Vol.. 46, No. 9
Object Description
Rating | |
Fixed Title * | NCHH-17: North Carolina Medical Journal [1940-Present] |
Document Title | North Carolina Medical Journal [1940-Present] |
Subject Topical Other | Public Health -- Periodicals.; Physicians -- North Carolina -- Directory.; Societies, Medical -- North Carolina -- Periodicals. |
Description | Includes Transactions of the Society, -1960; 1961- , Transactions issued separately, bound in.; Includes Transactions of the auxiliary to the Medical Society of the State of North Carolina and Proceedings of the North Carolina Public Health Association. Official organ of the Medical Society of the State of North Carolina, 1940-May 1972; of the North Carolina Medical Society, June 1972-. Vols. for 1940-May 1972 published by the Medical Society of the State of North Carolina; June 1972- by the North Carolina Medical Society. |
Contributor | Medical Society of the State of North Carolina. Transactions.; Medical Society of the State of North Carolina.; North Carolina Medical Society.; North Carolina Medical Society. Transactions.; North Carolina Public Health Association. Proceedings. |
Publisher | [Winston-Salem] : North Carolina Medical Society [etc.], 1940- |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1985 |
Identifier | NCHH-17-046 |
Form General | Periodicals |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 46 |
Health Discipline | Medicine |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-17/nchh-17-046.pdf |
Document Sort | all; nchh-17 |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-17-046 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-17 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1306322 |
Revision History | done |
Description
Fixed Title * | Page 654 (image) |
Document Title | North Carolina Medical Journal [1940-Present] |
Subject Topical Other | Public Health -- Periodicals.; Physicians -- North Carolina -- Directory.; Societies, Medical -- North Carolina -- Periodicals. |
Description | Includes Transactions of the Society, -1960; 1961- , Transactions issued separately, bound in.; Includes Transactions of the auxiliary to the Medical Society of the State of North Carolina and Proceedings of the North Carolina Public Health Association. Official organ of the Medical Society of the State of North Carolina, 1940-May 1972; of the North Carolina Medical Society, June 1972-. Vols. for 1940-May 1972 published by the Medical Society of the State of North Carolina; June 1972- by the North Carolina Medical Society. |
Contributor | Medical Society of the State of North Carolina. Transactions.; Medical Society of the State of North Carolina.; North Carolina Medical Society.; North Carolina Medical Society. Transactions.; North Carolina Public Health Association. Proceedings. |
Publisher | [Winston-Salem] : North Carolina Medical Society [etc.], 1940- |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1985 |
Identifier | NCHH-17-046-0300 |
Form General | Periodicals |
Page Type | all; all images; diagram; article |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Filename | ncmed461985medi2_0300.jp2 |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 46 |
Issue Number | 12 |
Page Number | 654 |
Health Discipline | Medicine |
Full Text | 13 What are the different ways in which cataracts are removed? Basically, there are two ways in which a cataract can be removed. In both techniques, the eye is surgically opened. 1 In the "Intracapsular" technique, an enzyme is injected into the front portion of the eye which weakens the zonules (see Figure 1) which hold the lens in place. The entire cataract is then removed from the eye with a cold probe which is brought into contact with the lens capsule (see Figure 5). The probe freezes a portion of the cataract which then sticks to it and enables the surgeon to pull the entire cataract out of the eye. "Intracapsular" means inside the capsule and "intracapsular cataract extraction" means that the cataract is taken out while it is inside the capsule. INTRACAPSULAR Incision in cornea EXTRACAPSULAR Fig. 5 Fig. 6 2 In the "Extracapsular" technique, an opening is made in the front port of the lens capsule and the contents of the capsule are gently removed from the eye leaving an intact back capsule in the eye (see Figure 6). The capsule is clear and allows light to pass through normally. Advantages of leaving the back copsule in the eye ore that it may help prevent retinal detachment and macular edema (swelling of the retina). A disadvantage of extracapsular extraction is that the bock capsule in some eyes may become cloudy months or years after surgery and reduce a person's vision. However, with the use of a laser, vision can be restored by a painless procedure taking only a few minutes and done in your doctor's office. Phacoemulsification is a variation on the extracapsular technique in which a needle-like device producing high frequency sound waves is used to break up the cataract while at the same time sucking it out of the eye. At present, it is generally thought that the extracapsular technique is the best way to remove a cataract. However, there ore exceptions to this and your surgeon will decide which is best for your particular eye. 14 What is a lens implant? A lens implant (intraocular lens or lOL) is a man-mode, tiny, clear, plastic device which is placed inside the eye ot the time the cataract is removed, natural lens and remains permanently within the eye. replaces the 654 Vol.. 46, No. 9 |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-17/nchh-17-046.pdf |
Document Sort | all; nchh-17 |
Article Title | Cataract And Lens Implant Surgery |
Article Author | John V. Thomas, |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-17-046 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-17 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1306322 |
Revision History | done |
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