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Changes in Visual Field Indices after Pterygium Surgery.
Fikret Ucar1, Halil Ibrahim Yener1, Servet Cetinkaya1
1Department of Ophthalmology, Konya Eye Hospital, Konya, Turkey.
Beyoglu Eye Journal
|January 21, 2022
Summary
Pterygium excision significantly improved visual field mean deviation (MD), likely due to reduced light scattering and improved optics. Pattern standard deviation (PSD) and visual field index (VFI) showed no significant changes post-surgery.
Area of Science:
- Ophthalmology
- Visual Science
Background:
- Pterygium, a wing-shaped fibrovascular growth, can affect visual function.
- Assessing visual field changes pre- and post-pterygium excision is crucial for understanding its impact.
Purpose of the Study:
- To prospectively evaluate the impact of pterygium excision on visual field test results.
- To analyze changes in mean deviation (MD), pattern standard deviation (PSD), and visual field index (VFI) after surgery.
Main Methods:
- Prospective, single-center study involving 75 eyes of 75 patients with stage III pterygium.
- Comparison of pre- and post-operative visual field parameters (MD, PSD, VFI) after pterygium excision with autograft implantation.
Main Results:
- Mean deviation (MD) significantly improved post-surgery (p<0.001).
- Pattern standard deviation (PSD) and visual field index (VFI) showed no significant changes (p>0.05).
Conclusions:
- Pterygium excision leads to a significant improvement in visual field mean deviation.
- The improvement in MD is attributed to reduced corneal light scattering, improved contrast sensitivity, and fewer aberrations.
- PSD and VFI remain largely unaffected, suggesting localized effects of pterygium on visual fields.
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