Visual Field Indices Changes after Pterygium Surgery

Abstract

Objectives: This study was a prospective evaluation of changes in the results of visual field tests taken before and after pterygium excision. Methods: This was a prospective, single-center study. Seventy-five eyes of 75 patients who had undergone pterygium excision with autograft implantation were enrolled. All of the patients had stage III pterygium according to the Johnston classification. The mean deviation (MD), pattern standard deviation (PSD), and visual field index (VFI) global index changes after pterygium excision were compared to evaluate the effect of pterygium on visual field analysis. Results: The mean preoperative MD value was -3.04±2.63 dB (range: -14.84–0.62 dB) and the mean postoperative MD value was -1.83±2.09 dB (range: -13.82–1.74 dB) (p<0.001). The mean preoperative PSD value was 2.59±1.92 dB (range: 1.16–12.76 dB) and the mean postoperative PSD value was 2.41±1.62 dB (1.15–13.29 dB) (p>0.05). The mean preoperative VFI value was 96.01±4.46% (range: 68–100%) and the mean postoperative VFI value was 96.28±4.18% (range: 70–100%) (p>0.05). Conclusion: After pterygium excision, the MD improved significantly. However, the PSD and VFI did not change significantly. The significant change in MD value was related to the reduction in corneal light scattering, contrast sensitivity, aberrations, and blockage on the optic axis.

Twelve-Month Results of Pterygium Surgery with Autologous Blood Assisted, Sutureless Conjunctival Autograft: Safe and Comfortable Surgical Technique

“…Pterygium is a prevalent ocular surface disease characterized by proliferative and degenerative changes that advance from the conjunctiva to the cornea. It can lead to sensations of foreign-body presence, diminished visual acuity, difficulties with accommodating contact lenses, and cosmetic concerns ( 1 ). The primary treatment for pterygium is surgical, and several surgical techniques have been documented.…”

Exérese de pterígio em paciente pós-LASIK com técnica de air bubble

“…(4)(5)(6) Ocorre mais frequentemente em adultos jovens, entre 20 e 40 anos. (3,7) Usualmente é localizado na região interpalpebral, sendo mais comum na região nasal. (3,8) Os sintomas incluem hiperemia, lacrimejamento, irritação e alteração visual.…”