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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
Effect of pseudophakia on standard perimetry parameters
Fatih Mehmet Mutlu1, Fahrettin Akay, Atilla Bayer
1Gülhane Military Medical Academy and Medical School, Ankara, Turkey. fmmutlu@hotmail.com
Current Eye Research
|October 21, 2009
Summary
Monofocal spheric acrylic intraocular lenses (IOLs) may impact visual field (VF) testing, particularly mean defect (MD) values, even with good visual acuity. Further research is needed to understand the reduction in VF sensitivity observed in pseudophakic patients.
Area of Science:
- Ophthalmology
- Visual Science
Background:
- Intraocular lenses (IOLs) are commonly implanted after cataract surgery.
- The impact of monofocal spheric acrylic IOLs on visual field (VF) parameters requires further investigation.
Purpose of the Study:
- To evaluate the effect of monofocal spheric acrylic IOLs on visual field (VF) parameters in pseudophakic individuals.
Main Methods:
- Central 24-2 threshold VF testing was performed on 36 pseudophakic patients and 42 healthy controls.
- VF data were analyzed across three concentric zones, comparing mean defect (MD) and pattern standard deviation (PSD) between groups.
Main Results:
- No significant differences were found in age, visual acuity, pupillary size, or foveal threshold between groups.
- Pseudophakic patients showed a statistically significant reduction in mean defect (MD) values compared to controls (p=0.01).
- VF sensitivity reduction was more pronounced in the peripheral retina of pseudophakic individuals.
Conclusions:
- Monofocal spheric acrylic IOLs can influence global indices like MD in VF testing, despite minimal impact on visual acuity.
- Further studies are necessary to elucidate the causes of reduced VF sensitivity in pseudophakic eyes.
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