ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2023
Real-time corneal thickness changes during phacoemulsification cataract surgery.
Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Characteristics and Factors of Incision-Related Descemet Membrane Detachment During Cataract Surgery: A Prospective Study.Ophthalmology and therapy · 2026Article
- Preoperative and Intraoperative Risk Factors for Short-Term Corneal Endothelial Cell Loss After Phacoemulsification in Dogs: A Comparative Study.Veterinary ophthalmology · 2026Article
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6 authors.
Funding
Abstract
purposeTo observe the changes in corneal thickness during phacoemulsification cataract surgery and to analyze the influencing factors.
methodsOne hundred two patients (102 eyes) with cataracts undergoing phacoemulsification cataract surgery at Shandong Eye Hospital between July and October 2021 were included. Intraoperative OCT was applied to capture real-time images preoperatively, before and after ultrasonic emulsification, at the end of irrigation aspiration and the end of surgery. Then, the corneal thickness at the above time points was measured using Photoshop software.
resultsThe corneal thickness of 102 cataract patients was 511.79 ± 31.46 μm before operation and 512.71 ± 31.51 μm at the beginning of phacoemulsification, which increased by 0.91 ± 1.48 μm (0.2%). At the end of ultrasonic emulsification, the corneal thickness was 521.58 ± 32.75 μm and 8.87 ± 8.71 μm (1.7%) thicker than that before the procedure. After irrigation aspiration, the corneal thickness reached 528.09 ± 33.87 μm, which increased by 6.52 ± 6.38 μm (1.3%) compared with that of the previous step. At the end of the operation, the corneal thickness was 539.19 ± 33.88 μm, 11.09 ± 10.92 μm, and 27.37 ± 13.64 μm thicker than that of the previous step and the preoperative thickness, respectively, with an overall increase of 5.3%. The differences were statistically significant at all time points (all P < 0.001). Correlation analysis showed that postoperative corneal thickness changes were correlated with age, cataract lens nuclear grade, actual phacoemulsification time (APT), effective phacoemulsification time (EPT), average phacoemulsification energy (APE), total surgery time (TST), cell density (CD), maximum cell area (MAX), and cell area standard deviation (SD) (all P < 0.05), while the changes in thickness were not correlated with gender, cell area coefficient of variation (CV), percentage of hexagonal cells (6A), average cell area (AVE), or minimum cell area (MIN) (all P > 0.05).
conclusionsDuring phacoemulsification cataract surgery, corneal thickness gradually increases in real time with the increase of perfusion pressure and intraocular manipulation time. The real-time magnitude of intraoperative corneal thickness change is closely related to lens nucleus hardness, corneal endothelial cell density, ultrasound energy, and time for emulsification.
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