The Effect of Cataract on Eye Movement Perimetry
Purpose. To determine how different grades of cataract affect sensitivity threshold and saccadic reaction time (SRT) in eye movement perimetry (EMP). Methods. In EMP, the visual field is tested by assessing the saccades that a subject makes towards peripheral stimuli using an eye tracker. Forty-eigh...
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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/10.1155/2015/425067 |
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| author | G. Thepass J. J. M. Pel K. A. Vermeer O. Creten S. R. Bryan H. G. Lemij J. van der Steen |
| author_facet | G. Thepass J. J. M. Pel K. A. Vermeer O. Creten S. R. Bryan H. G. Lemij J. van der Steen |
| author_sort | G. Thepass |
| collection | DOAJ |
| description | Purpose. To determine how different grades of cataract affect sensitivity threshold and saccadic reaction time (SRT) in eye movement perimetry (EMP). Methods. In EMP, the visual field is tested by assessing the saccades that a subject makes towards peripheral stimuli using an eye tracker. Forty-eight cataract patients underwent pre- and postoperative EMP examination in both eyes. The subjects had to fix a central stimulus presented on the eye tracker monitor and to look at any detected peripheral stimulus upon its appearance. A multilevel mixed model was used to determine the factors that affected the sensitivity threshold and the SRT as a function of cataract grade. Results. We found no effect of cataract severity (LOCS III grades I through IV) on SRT and the sensitivity thresholds. In cataract of LOCS III grade V, however, we found an increase by 27% and 21% (p<0.001), respectively, compared to the SRT and the sensitivity threshold in LOCS III grade I. Eyes that underwent cataract surgery showed no change in mean SRTs and sensitivity thresholds after surgery in LOCS III grade IV and lower. Conclusion. The present study shows that EMP can be readily used in patients with cataract with LOCS III grade IV and below. |
| format | Article |
| id | doaj-art-1516ebfb17664c88985c239608b089a5 |
| 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-1516ebfb17664c88985c239608b089a52025-02-03T06:44:29ZengWileyJournal of Ophthalmology2090-004X2090-00582015-01-01201510.1155/2015/425067425067The Effect of Cataract on Eye Movement PerimetryG. Thepass0J. J. M. Pel1K. A. Vermeer2O. Creten3S. R. Bryan4H. G. Lemij5J. van der Steen6Vestibular and Ocular Motor Research Group, Department of Neuroscience, Erasmus MC, P.O. Box 2040, 3000 CA Rotterdam, NetherlandsVestibular and Ocular Motor Research Group, Department of Neuroscience, Erasmus MC, P.O. Box 2040, 3000 CA Rotterdam, NetherlandsRotterdam Ophthalmic Institute, P.O. Box 70030, 3000 LM Rotterdam, NetherlandsRotterdam Eye Hospital, P.O. Box 70030, 3000 LM Rotterdam, NetherlandsRotterdam Ophthalmic Institute, P.O. Box 70030, 3000 LM Rotterdam, NetherlandsRotterdam Ophthalmic Institute, P.O. Box 70030, 3000 LM Rotterdam, NetherlandsVestibular and Ocular Motor Research Group, Department of Neuroscience, Erasmus MC, P.O. Box 2040, 3000 CA Rotterdam, NetherlandsPurpose. To determine how different grades of cataract affect sensitivity threshold and saccadic reaction time (SRT) in eye movement perimetry (EMP). Methods. In EMP, the visual field is tested by assessing the saccades that a subject makes towards peripheral stimuli using an eye tracker. Forty-eight cataract patients underwent pre- and postoperative EMP examination in both eyes. The subjects had to fix a central stimulus presented on the eye tracker monitor and to look at any detected peripheral stimulus upon its appearance. A multilevel mixed model was used to determine the factors that affected the sensitivity threshold and the SRT as a function of cataract grade. Results. We found no effect of cataract severity (LOCS III grades I through IV) on SRT and the sensitivity thresholds. In cataract of LOCS III grade V, however, we found an increase by 27% and 21% (p<0.001), respectively, compared to the SRT and the sensitivity threshold in LOCS III grade I. Eyes that underwent cataract surgery showed no change in mean SRTs and sensitivity thresholds after surgery in LOCS III grade IV and lower. Conclusion. The present study shows that EMP can be readily used in patients with cataract with LOCS III grade IV and below.http://dx.doi.org/10.1155/2015/425067 |
| spellingShingle | G. Thepass J. J. M. Pel K. A. Vermeer O. Creten S. R. Bryan H. G. Lemij J. van der Steen The Effect of Cataract on Eye Movement Perimetry Journal of Ophthalmology |
| title | The Effect of Cataract on Eye Movement Perimetry |
| title_full | The Effect of Cataract on Eye Movement Perimetry |
| title_fullStr | The Effect of Cataract on Eye Movement Perimetry |
| title_full_unstemmed | The Effect of Cataract on Eye Movement Perimetry |
| title_short | The Effect of Cataract on Eye Movement Perimetry |
| title_sort | effect of cataract on eye movement perimetry |
| url | http://dx.doi.org/10.1155/2015/425067 |
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