ArticleRomanian journal of ophthalmology
Early Keratometric and Scheimpflug Topographic Stabilization after Pterygium Excision with Conjunctival Autograft: A Prospective Cohort Study.
Article in Romanian journal of ophthalmology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To evaluate early corneal stabilization following pterygium excision with conjunctival autograft, using keratometry and Scheimpflug imaging, and to compare outcomes with recent evidence. Methods: In this prospective cohort of 70 eyes (February 2019-February 2020), primary nasal pterygium excision with conjunctival autograft was performed using either fibrin glue (n = 35) or Autologous plasma (n = 35). Keratometric and Scheimpflug parameters [corneal astigmatism, index of surface variance (ISV), index of vertical asymmetry (IVA), maximum keratometry (Kmax), posterior corneal astigmatism] were assessed preoperatively, and at 1- and 2-month follow-up. Outcomes were compared using paired t-tests and subgroup analysis. Results: Mean keratometric astigmatism decreased from 1.35 ± 1.12 D preoperatively to 0.71 ± 0.65 D at 2 months (p < 0.001). Scheimpflug-derived astigmatism reduced from 1.22 ± 0.95 D to 0.89 ± 0.71 D (p < 0.001). ISV improved from 42.6 ± 6.4 to 33.2 ± 4.9 (p < 0.01), IVA from 0.38 ± 0.12 to 0.29 ± 0.10 (p < 0.01), and Kmax decreased modestly (p < 0.05). Outcomes were comparable between glue and suture groups (p > 0.05). Recurrence occurred in 3 eyes (4.3%). Discussion: The present study demonstrated early stabilization of keratometric and Scheimpflug parameters following pterygium excision with conjunctival autograft, suggesting that significant corneal remodeling occurs within the early postoperative period. Conclusions: Pterygium excision with conjunctival autograft yields a significant early reduction in astigmatism and an improvement in corneal surface regularity by 2 months, independent of fixation technique. These results support early refractive rehabilitation and spectacle planning after surgery.
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