Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful Trabeculectomies
Background: It has been reported that cataract surgery can compromise the function of a filtering bleb, resulting in loss of control of intraocular pressure (IOP). In a number of retrospective studies a rise of IOP after extra capsular extraction and even after phacoemulsification in filtered glauco...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2013-07-01
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| Series: | MRIMS Journal of Health Sciences |
| Subjects: | |
| Online Access: | http://mrimsjournal.com/wp-content/uploads/2013/07/2.pdf |
| _version_ | 1818234626113536000 |
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| author | Sneh S. Dhannawat R. Ramarishnan |
| author_facet | Sneh S. Dhannawat R. Ramarishnan |
| author_sort | Sneh S. Dhannawat |
| collection | DOAJ |
| description | Background: It has been reported that cataract surgery can compromise the function of a filtering bleb, resulting in loss of control of intraocular pressure (IOP). In a number of retrospective studies a rise of IOP after extra capsular extraction and even after phacoemulsification in filtered glaucoma eye was shown. Objective: To evaluate the effect of temporal clear corneal Phacoemulsification with Intraocular Lens implantation (IOL) on IOP control in glaucoma patients who had previous successful trabeculectomy. Methods: The clinical course of 60 patients (60 eyes) who underwent temporal clear corneal phacoemulsification after successful trabeculetomy was studied over a period of 3 years. The number of Primary Open Angle Glaucoma (POAG) and Primary Angle Closure Glaucoma (PACG) cases was equal in our study. Comparison of pre-operative and post-operative IOP, visual acuity, bleb morphology and the number of medications was made at follow up interval of 1 month, 3 months, 6 months and 12 months respectively.Results: The mean ± SD IOP before phacoemulsification was 12.2 ± 4.608 mmHg and it increased to 14.98, 14.47, 15.44 and 15.71 after 1, 3, 6 and 12 months respectively. At each interval the mean IOP was significantly higher than the pre-operative value (p = 0.000, 0.015, 0.000, 0.001 respectively) There was also an increase in the number of antiglaucoma medications used after phacoemulsification. The mean ± SD of medication before phacoemulsification was 0.57 + 0.62 and it increased to 0.65, 0.70, 0.68, 0.67 after 1, 3, 6 and 12 months respectively. But the difference was not statistically significant. Conclusion: Temporal clear corneal phacoemulsification significantly increases IOP in eyes with pre-existing functioning filtering bleb. No statistically significant difference was found between the outcomes of POAG and PACG groups. There is a statistically significant improvement in visual acuity following phacoemulsification with intraocular lens implantation. |
| first_indexed | 2024-12-12T11:41:04Z |
| format | Article |
| id | doaj.art-2da468726cbe4238a40fbe9de212333c |
| institution | Directory Open Access Journal |
| issn | 2321-7006 2321-7294 |
| language | English |
| last_indexed | 2024-12-12T11:41:04Z |
| publishDate | 2013-07-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | MRIMS Journal of Health Sciences |
| spelling | doaj.art-2da468726cbe4238a40fbe9de212333c2022-12-22T00:25:32ZengWolters Kluwer Medknow PublicationsMRIMS Journal of Health Sciences2321-70062321-72942013-07-011147Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful TrabeculectomiesSneh S. DhannawatR. RamarishnanBackground: It has been reported that cataract surgery can compromise the function of a filtering bleb, resulting in loss of control of intraocular pressure (IOP). In a number of retrospective studies a rise of IOP after extra capsular extraction and even after phacoemulsification in filtered glaucoma eye was shown. Objective: To evaluate the effect of temporal clear corneal Phacoemulsification with Intraocular Lens implantation (IOL) on IOP control in glaucoma patients who had previous successful trabeculectomy. Methods: The clinical course of 60 patients (60 eyes) who underwent temporal clear corneal phacoemulsification after successful trabeculetomy was studied over a period of 3 years. The number of Primary Open Angle Glaucoma (POAG) and Primary Angle Closure Glaucoma (PACG) cases was equal in our study. Comparison of pre-operative and post-operative IOP, visual acuity, bleb morphology and the number of medications was made at follow up interval of 1 month, 3 months, 6 months and 12 months respectively.Results: The mean ± SD IOP before phacoemulsification was 12.2 ± 4.608 mmHg and it increased to 14.98, 14.47, 15.44 and 15.71 after 1, 3, 6 and 12 months respectively. At each interval the mean IOP was significantly higher than the pre-operative value (p = 0.000, 0.015, 0.000, 0.001 respectively) There was also an increase in the number of antiglaucoma medications used after phacoemulsification. The mean ± SD of medication before phacoemulsification was 0.57 + 0.62 and it increased to 0.65, 0.70, 0.68, 0.67 after 1, 3, 6 and 12 months respectively. But the difference was not statistically significant. Conclusion: Temporal clear corneal phacoemulsification significantly increases IOP in eyes with pre-existing functioning filtering bleb. No statistically significant difference was found between the outcomes of POAG and PACG groups. There is a statistically significant improvement in visual acuity following phacoemulsification with intraocular lens implantation.http://mrimsjournal.com/wp-content/uploads/2013/07/2.pdfCataractFiltering surgeryIntraocular pressurePhacoemulsificationTrabeculectomy |
| spellingShingle | Sneh S. Dhannawat R. Ramarishnan Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful Trabeculectomies MRIMS Journal of Health Sciences Cataract Filtering surgery Intraocular pressure Phacoemulsification Trabeculectomy |
| title | Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful Trabeculectomies |
| title_full | Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful Trabeculectomies |
| title_fullStr | Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful Trabeculectomies |
| title_full_unstemmed | Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful Trabeculectomies |
| title_short | Function of filtering bleb after Cataract Surgery in Eyes with Previous Successful Trabeculectomies |
| title_sort | function of filtering bleb after cataract surgery in eyes with previous successful trabeculectomies |
| topic | Cataract Filtering surgery Intraocular pressure Phacoemulsification Trabeculectomy |
| url | http://mrimsjournal.com/wp-content/uploads/2013/07/2.pdf |
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