Relevance. During cataract surgeries, the lens capsule is sometimes not preserved, which makes the standard placement of an intraocular lens (IOL) impossible. In such cases, fixation of the lens in the posterior chamber of the eye is necessary.

Aim of the study: To perform a comprehensive assessment of visual function, anatomical condition, and clinical-functional indicators of the eye after fixation of IOL in the posterior chamber in cases without the lens capsule. Materials and Methods: Fifty patients (50 eyes) with cataracts lacking the lens capsule were examined. The patients were divided into two groups: Group 1 (main group) — patients with IOL fixed in the posterior chamber; Group 2 (control group) — patients with IOL fixed in the anterior chamber. All patients underwent a comprehensive ophthalmological examination including visual acuity testing, biomicroscopy, tonometry, ophthalmoscopy, and special diagnostic methods such as autorefractometry, pachymetry, endothelial microscopy, echobiometry, A-scan, B-scan, ultrasound biomicroscopy (UBM), and optical coherence tomography (OCT). Results: The average visual acuity in patients with IOL fixation in the posterior chamber was higher, at 0.6±0.1, while in patients with IOL fixation in the anterior chamber, it was slightly lower, at 0.5±0.1. The main complications included cystoid macular edema (8%), IOL decentration (6%), and inflammatory reactions (12%). Intraocular pressure normalized within one month post-operation in 90% of patients. Conclusion: Fixation of IOL in the posterior chamber in the absence of the lens capsule is an effective method for rehabilitating patients with cataracts. Optimal choice of fixation method helps to minimize the risk of complications and achieve satisfactory functional outcomes.

intraocular lens, phacoemulsification, cataract, cataract surgery, IOL fixation in the posterior chamber.

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