Differential approach to the use of femtosecond laser in age-related cataract surgery in eyes with different lens density
DOI:
https://doi.org/10.31288/oftalmolzh2018436Keywords:
cataract, ultrasound phacoemulsification cataract surgery, femtosecond laser-assisted cataract surgery, cumulative dissipated energyAbstract
Background: The femtosecond laser provides a new approach to cataract surgery. The efficacy of femtosecond laser-assisted lens fragmentation depends on mechanical lens density and effective fragmentation is important in the management of patients with age-related cataract.
Purpose: To determine the differential indications for femtosecond laser-assisted cataract surgery (FLACS) for age-related cataract patients with different lens densities.
Materials and Methods: One hundred and ten patients (120 eyes) who underwent cataract surgery using either conventional ultrasound phacoemulsification cataract surgery (UPCS; 55 patients) or FLACS (55 patients) were prospectively followed up.
Results: Laser-assisted lens fragmentation was most effective in eyes with a predicted cumulative dissipated energy (CDE) of 10.0 to 14.1 units, allowing for a 5.7 unit (43.4%) decrease in actual CDE compared to the use of conventional phacoemulsification.
Conclusion: The use of femtosecond laser in age-related cataract surgery is most effective in eyes with a soft lens nucleus.
References
Shajari M, Khalil S, Mayer WJ, et al. Comparison of 2 laser fragmentation patterns used in femtosecond laser-assisted cataract surgery. J Cataract Refract Surg. 2017 ec;43(12):1571-4. https://doi.org/10.1016/j.jcrs.2017.09.027
Nagy ZZ, Takacs AI, Filkorn T, et al. Complications of femtosecond laser-assisted cataract surgery. J Cataract Refract Surg. 2014 Jan;40(1):20-8. https://doi.org/10.1016/j.jcrs.2013.08.046
Gritsenko YaA, Dmitriev SK, Kovalchouk AG et al. [An improved method for determining the density characteristics of the lens in patients with age-related cataract by ultrasound B-scan]. Oftalmol Zh. 2015;1:96-102.
Pasyechnikova NV, Dmytriiev SK, Grytsenko YaA. [Model for predicting the density of the lens based on acoustic impedance studies]. Oftalmologiya. Vostochnaya Evropa. 2017;7(1):18-26.
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