**5. Conclusions**

In summary, the use of i-OCT in cataract surgery may represent a useful tool for novel surgeons approaching phacoemulsification, but also for expert ones for teaching purposes and to plan and manage complicated cases. I-OCT could also be employed to avoid refractive errors or intraoperative complications in patients with white cataracts or PPCs and to identify micro fragments in the Berger space. However, only a few studies have shown a sufficient grade or level of evidence and some limitations have been pointed out. Prospective studies would be ideal to pursue the question of the advantages of the use of i-OCT in cataract surgery and the factors or conditions that may indicate its use.

**Author Contributions:** Conceptualization, M.D.T., R.G. and A.C.; methodology, M.D.T., R.G. and A.C.; software, validation, formal analysis, investigation, resources, data curation, all authors; writing—original draft preparation, M.D.T., R.G., A.C. and S.M.; writing—review and editing, all authors; visualization, all authors; supervision, all authors; project administration, M.D.T.; funding acquisition, M.D.T. and R.R. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Data are available on reasonable request by the corresponding author.

**Acknowledgments:** The work-study has been supported by the "Foundation to support the development of Ophthalmology", Lublin, Poland. The Foundation had no role in the interpretation of data or in the decision to publish the results.

**Conflicts of Interest:** The authors declare no conflict of interest.
