Femtosecond laser-assisted cataract surgery (FLACS) versus conventional phacoemulsification: a literature review of refractive outcomes, surgical time, and safety
DOI:
https://doi.org/10.56183/iberojhr.v5i2.846Palavras-chave:
Femtosecond laser-assisted cataract surgery, Phacoemulsification, Refractive outcomes, Surgical efficiency, Endothelial cell loss, Cataract safety, Randomized controlled trials.Resumo
Cataract surgery, the world’s most common ophthalmic procedure, has long relied on PCS, while FLACS introduced precision and safety enhancements, though its clinical superiority and cost-effectiveness over PCS remain uncertain. A systematic search of PubMed, Cochrane Library, and Google Scholar was conducted for studies published between 2015 and 2024 using Boolean operators and keywords (“FLACS,” “phacoemulsification,” “refractive outcomes,” “surgical efficiency,” “safety”). Data were synthesized into three domains: refractive outcomes, surgical efficiency, and safety. Evidence from large RCTs (FACT, FEMCAT) and meta-analyses (>9,000 eyes) demonstrated no significant differences in refractive accuracy, with 71% of eyes in both FLACS and PCS groups achieving ±0.5 D and over 92% within ±1.0 D. Surgical efficiency analysis showed FLACS reduced cumulative dissipated energy (CDE) by 15–30% but prolonged total operative time due to docking. Safety outcomes were equivalent, with no significant increase in posterior capsule rupture or retinal complications. Early endothelial cell loss was reduced by 3–5% in FLACS groups, a benefit most relevant in high-risk patients. FLACS provides improved capsulotomy precision, reduced phaco energy use, and early corneal protection but does not confer long-term refractive or safety superiority over PCS. Its higher cost and longer operative time limit routine adoption, though it remains valuable in dense cataracts and corneal vulnerability.
Referências
Abell, R. G., & Vote, B. J. (2014). Cost-effectiveness of femtosecond laser-assisted cataract surgery versus phacoemulsification cataract surgery. Ophthalmology, 121(1), 10–16. https://doi.org/10.1016/J.OPHTHA.2013.07.056
Baldascino, A., Carlà, M. M., Giannuzzi, F., Boselli, F., Caporossi, T., Gambini, G., Villano, A., Caporossi, A., & Rizzo, S. (2022). Femtosecond Laser-Assisted Cataract Surgery: Analysis of Surgical Phases and Comparison with Standard Phacoemulsification in Uncomplicated Cataracts. Vision, 6(4), 72. https://doi.org/10.3390/VISION6040072
Bénard, A., Sitta, R., Brezin, A. P., Cochener, B., Monnet, D., Denis, P., Pisella, P. J., Hayes, N., & Schweitzer, C. (2023). Cost Utility and Value of Information Analysis of Femtosecond Laser–Assisted Cataract Surgery. JAMA Ophthalmology, 141(7), 625. https://doi.org/10.1001/JAMAOPHTHALMOL.2023.1716
Chen, D. Z., & Chee, S. P. (2024). Femtosecond laser-assisted cataract surgery for complex cataracts – A review. Indian Journal of Ophthalmology, 72(5), 629. https://doi.org/10.4103/IJO.IJO_2996_23
Cleland, S. C., Knoch, D. W., & Larson, J. C. (2021). Outcomes of Femtosecond Laser Assisted Cataract Surgery Performed by Resident and Attending Surgeons. Journal of Academic Ophthalmology, 13(1), e26. https://doi.org/10.1055/S-0041-1725582
Day, A. C., Burr, J. M., Bennett, K., Bunce, C., Doré, C. J., Rubin, G. S., Nanavaty, M. A., Balaggan, K. S., Wilkins, M. R., Aiello, F., Ali, M., Allan, B., Boston, H., Chandler, T., Dhallu, S., Elkarmouty, A., Gambell, J., Hunter, R., Ikeji, F., … Yang, Y. (2020). Femtosecond Laser-Assisted Cataract Surgery Versus Phacoemulsification Cataract Surgery (FACT): A Randomized Noninferiority Trial. Ophthalmology, 127(8), 1012. https://doi.org/10.1016/J.OPHTHA.2020.02.028
Day, A. C., Gore, D. M., Bunce, C., & Evans, J. R. (2016). Laser-assisted cataract surgery versus standard ultrasound phacoemulsification cataract surgery. Cochrane Database of Systematic Reviews, 2016(7). https://doi.org/10.1002/14651858.CD010735.PUB2
Dzhaber, D., Mustafa, O. M., Alsaleh, F., & Daoud, Y. J. (2020). Visual and refractive outcomes and complications in femtosecond laser-assisted versus conventional phacoemulsification cataract surgery: Findings from a randomised, controlled clinical trial. British Journal of Ophthalmology, 104(11), 1596–1600. https://doi.org/10.1136/BJOPHTHALMOL-2019-314548,
Elghobaier, M. G. E., Ibrahiem, M. F. K., Abdelhalim, A. S., Eid, A. M., & Murad, K. A. S. (2020). Clinical and Surgical Outcomes of Femtosecond Laser-Assisted Cataract Surgery (FLACS) on Hard Cataracts in the Egyptian Population. Clinical Ophthalmology (Auckland, N.Z.), 14, 1383. https://doi.org/10.2147/OPTH.S248670
Friedman, N. J., Palanker, D. V., Schuele, G., Andersen, D., Marcellino, G., Seibel, B. S., Batlle, J., Feliz, R., Talamo, J. H., Blumenkranz, M. S., & Culbertson, W. W. (2011). Femtosecond laser capsulotomy. Journal of Cataract and Refractive Surgery, 37(7), 1189–1198. https://doi.org/10.1016/J.JCRS.2011.04.022
Kelman, C. D. (2018). Phaco-Emulsification and Aspiration: A New Technique of Cataract Removal: A Preliminary Report. American Journal of Ophthalmology, 191, xxx–xl. https://doi.org/10.1016/j.ajo.2018.04.014
Kránitz, K., Miháltz, K., Sándor, G. L., Takacs, A., Knorz, M. C., & Nagy, Z. Z. (2012). Intraocular lens tilt and decentration measured by scheimpflug camera following manual or femtosecond laser-created continuous circular capsulotomy. Journal of Refractive Surgery, 28(4), 259–263. https://doi.org/10.3928/1081597X-20120309-01
Kránitz, K., Takacs, A., Miháltz, K., Kovács, I., Knorz, M. C., & Nagy, Z. Z. (2011). Femtosecond laser capsulotomy and manual continuous curvilinear capsulorrhexis parameters and their effects on intraocular lens centration. Journal of Refractive Surgery, 27(8), 558–563. https://doi.org/10.3928/1081597X-20110623-03
Krarup, T., Ejstrup, R., Mortensen, A., La Cour, M., & Holm, L. M. (2019). Comparison of refractive predictability and endothelial cell loss in femtosecond laser-assisted cataract surgery and conventional phaco surgery: prospective randomised trial with 6 months of follow-up. BMJ Open Ophthalmology, 4(1). https://doi.org/10.1136/BMJOPHTH-2018-000233,
Krarup, T., Rose, K., Marie-Laurence, A., Mensah, A., la Cour, M., & Holm, L. M. (2021). Comparing corneal outcome between femtosecond laser-assisted cataract surgery and conventional phaco surgery in Fuchs’ endothelial dystrophy patients: a randomized pilot study with 6mo follow up. International Journal of Ophthalmology, 14(5), 684. https://doi.org/10.18240/IJO.2021.05.07
Lee, S. H., Chiu, Y. C., Tsai, P. C., Wang, J. H., & Chiu, C. J. (2025). Femtosecond laser-assisted cataract surgery versus conventional phacoemulsification cataract surgery: a meta-analysis of randomized controlled trials. Scientific Reports, 15(1), 27569. https://doi.org/10.1038/S41598-025-13174-1
Levitz, L. M., Dick, H. B., Scott, W., Hodge, C., & Reich, J. A. (2021). The Latest Evidence with Regards to Femtosecond Laser-Assisted Cataract Surgery and Its Use Post 2020. Clinical Ophthalmology (Auckland, N.Z.), 15, 1357. https://doi.org/10.2147/OPTH.S306550
Lin, C. C., Rose-Nussbaumer, J. R., Al-Mohtaseb, Z. N., Pantanelli, S. M., Steigleman, W. A., Hatch, K. M., Santhiago, M. R., Kim, S. J., & Schallhorn, J. M. (2022). Femtosecond Laser-Assisted Cataract Surgery: A Report by the American Academy of Ophthalmology. Ophthalmology, 129(8), 946. https://doi.org/10.1016/J.OPHTHA.2022.04.003
Liu, Y. C., Setiawan, M., Chin, J. Y., Wu, B., Ong, H. S., Lamoureux, E., & Mehta, J. S. (2021). Randomized Controlled Trial Comparing 1-Year Outcomes of Low-Energy Femtosecond Laser-Assisted Cataract Surgery versus Conventional Phacoemulsification. Frontiers in Medicine, 8. https://doi.org/10.3389/FMED.2021.811093/PDF
Medhi, S., Senthil Prasad, R., Pai, A., Muthukrishnan, G. R., Mariammal, A., Chitradevi, R., & Shekhar, M. (2022). Clinical outcomes of femtosecond laser–assisted cataract surgery versus conventional phacoemulsification: A retrospective study in a tertiary eye care center in South India. Indian Journal of Ophthalmology, 70(12), 4300. https://doi.org/10.4103/IJO.IJO_802_22
Miháltz, K., Knorz, M. C., Alió, J. L., Takács, Á. I., Kránitz, K., Kovács, I., & Nagy, Z. Z. (2011). Internal aberrations and optical quality after femtosecond laser anterior capsulotomy in cataract surgery. Journal of Refractive Surgery, 27(10), 711–716. https://doi.org/10.3928/1081597X-20110913-01
Nagy, Z. Z., Kránitz, K., Takacs, A. I., Miháltz, K., Kovács, I., & Knorz, M. C. (2011). Comparison of intraocular lens decentration parameters after femtosecond and manual capsulotomies. Journal of Refractive Surgery, 27(8), 564–569. https://doi.org/10.3928/1081597X-20110607-01
Schweitzer, C., Brezin, A., Cochener, B., Monnet, D., Germain, C., Roseng, S., Sitta, R., Maillard, A., Hayes, N., Denis, P., Pisella, P. J., Benard, A., Albou-Ganem, C., Arné, J. L., Bardet, E., Bourreau, C., Chatoux, O., Cochard, C., Colin, J., … Vandenmeer, G. (2020). Femtosecond laser-assisted versus phacoemulsification cataract surgery (FEMCAT): a multicentre participant-masked randomised superiority and cost-effectiveness trial. The Lancet, 395(10219), 212–224. https://doi.org/10.1016/S0140-6736(19)32481-X
Song, X., Li, L., Zhang, X., & Ma, J. (2025). Comparing the efficacy and safety between femtosecond laser-assisted cataract surgery and conventional phacoemulsification cataract surgery: systematic review and meta-analysis. Canadian Journal of Ophthalmology, 60(1), e1–e10. https://doi.org/10.1016/j.jcjo.2024.05.030
Wang, H., Chen, X., Xu, J., & Yao, K. (2023). Comparison of femtosecond laser-assisted cataract surgery and conventional phacoemulsification on corneal impact: A meta-analysis and systematic review. PLOS ONE, 18(4), e0284181. https://doi.org/10.1371/JOURNAL.PONE.0284181
Downloads
Publicado
Como Citar
Edição
Seção
Licença
Copyright (c) 2025 Oñate Urrutia Henry Vladimir, Manuel de Jesús Joya Peña, Ana Gabriela Figueroa Ortega, Giovanni Andres Arias Audor, Luis Manuel Palacios Rodríguez, José Julián Rincón Muñoz

Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.


