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. 2026 Feb 23;14:1764867. doi: 10.3389/fbioe.2026.1764867

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Copyright © 2026 Yi, Song, Chen, Su, Liu, Tang, Wei, Wang and Cheng.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Three sets of scanning electron microscope images, each showing tissue cross-sections with different treatments: control (left), GelMA/HA-NB/LAP (middle), and GelMA/HA-NB/LAP plus lenticules (right). Top row shows color-segmented images to highlight structural layers, while the bottom row presents grayscale close-ups of each group’s microstructure. Each set visually demonstrates differences in tissue organization, density, and layering due to the various treatments. — Scanning electron microscopy (SEM) observation of rabbit corneal tissues at postoperative week 5. Yellow: host rabbit corneal tissue; purple: GelMA/HA‑NB/LAP hydrogel; green: transplanted lenticules. Scale bars: (top: 200 μm, bottom: 10 μm).