The prevalence of pterygium was associated with short axial length and anterior chamber depth in a Chinese retrospective, hospital-based, cross-sectional study.
“In this study, an increasing trend was found in the prevalence of pterygium with the severity of hyperopia, which has a connection with short axial length,” the authors wrote.
The study compared anatomic characteristics of 114 eyes with pterygium and 407 without.
Hyperopia prevalence in the pterygium group was 81.6% vs. 65.1% in the non-pterygium group (P = .001). Eye size was statistically significantly shorter in the pterygium group, indicated by shorter mean axial length (23.1 mm vs. 24.2 mm, P < .001) and anterior chamber depth (2.9 cm vs. 3.1 cm, P = .001).
“Interestingly, hyperopia seemed to have an association with pterygium; however, stratied chi-square analysis showed that hyperopia was not a related factor; instead, it was just a consequence of short axial length,” the authors said.
The authors also suggested that stromal myofibroblasts or fibroblasts may “play a vital role in pterygium progression.” – by Erin T. Welsh
Disclosures: The authors report no relevant financial disclosures.