ArticleClinical ophthalmology (Auckland, N.Z.)2026
Interocular Axial Length Asymmetry and Postoperative Refractive Error After Bilateral Cataract Surgery: A Retrospective Comparative Study.
Article in Clinical ophthalmology (Auckland, N.Z.), 2026. 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
Purpose: To evaluate whether interocular axial length (AL) asymmetry is associated with postoperative refractive error, independent of absolute AL. Patients and Methods: This retrospective comparative study included 42 patients (84 eyes) who underwent bilateral cataract surgery. Within-patient comparisons were performed between longer-AL and shorter-AL eyes, and longer-AL eyes were also compared with an AL-matched control group. Postoperative spherical equivalent (SE) at 1 month was compared with predicted SE using the Barrett Universal II and SRK/T formulas. Multivariable regression analysis was performed. Results: Mean postoperative refractive error (mean ± SD) was -0.20 ± 0.63 D in the longer-AL group vs 0.02 ± 0.50 D in the shorter-AL group (BU, p = 0.01), and -0.41 ± 0.84 D vs -0.05 ± 0.53 D (SRK/T, p = 0.02). Longer-AL eyes showed a significantly greater myopic shift than shorter-AL and control eyes. Interocular AL difference remained independently associated with postoperative refractive error. Conclusion: Interocular AL asymmetry was associated with postoperative myopic shift, even after adjustment for axial length and other covariates.
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