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K.S. Avetisov

FGBU "NII glaznykh bolezneĭ" RAMN

N.A. Bakhchieva

Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russia, 119021

S.É. Avetisov

FGBU "Nauchno-issledovatel'skiĭ institut glaznykh bolezneĭ" RAMN, Moskva

I.A. Novikov

Institute of Cardiology named after A.L. Myasnikov of National Medical Research Center for Cardiology, Moscow, Russia

N.V. Belikov

Bauman Moscow State Technical University, 5/12-aya Baumanskaya, Moscow, Russia, 105005

I.V. Khaidukova

State educational institution of higher professional education «South Ural State Medical University», Russian Ministry of Health, Chelyabinsk, Russian Federation

Biomechanical properties of the anterior lens capsule after manual and femtolaser capsulotomy

Authors:

K.S. Avetisov, N.A. Bakhchieva, S.É. Avetisov, I.A. Novikov, N.V. Belikov, I.V. Khaidukova

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Journal: Vestnik Oftalmologii. 2019;135(1): 4‑11

DOI: 10.17116/oftalma20191350114

Views: 687

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To cite this article:

Avetisov KS, Bakhchieva NA, Avetisov SÉ, Novikov IA, Belikov NV, Khaidukova IV. Biomechanical properties of the anterior lens capsule after manual and femtolaser capsulotomy. Vestnik Oftalmologii. 2019;135(1):4‑11. (In Russ., In Engl.)
https://doi.org/10.17116/oftalma20191350114

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Purpose — to comparatively evaluate the mechanical stability of the edge of central fragment of anterior lens capsule after manual and femtolaser capsulotomy. Material and methods. The mechanical tests were performed on the central fragments of the anterior lens capsules obtained intraoperatively after manual and femtolaser capsulotomy (15 and 13 samples, respectively). The conditions of the developed method of mechanical testing are as close to in vivo as possible. The method allows evaluation of the mechanical response mainly from the edge of the sample, reception of the averaged response from the four edges of the capsule, and almost eliminates the effect of additional edge notches in samples obtained by manual capsulotomy. Results. After manual capsulotomy, the maximum force and elongation of the anterior capsule sample at maximum tensile strength were significantly higher than similar characteristics of the samples after femtolaser capsulotomy. Conclusion. The obtained results correspond with the morphological studies of capsule edge structure after manual and femtolaser capsulotomy. The edge of the anterior capsule after femtolaser capsulotomy has form, in rough approximation, close to one of a postage stamp perforation, which is the consequence of micro-irregularities (microfractures) in the areas irradiated by pulsed laser, and wider area of deepithelization compared to the manual technique.

Keywords:

lens capsule
anterior capsulotomy
biomechanics of anterior lens capsule
femtosecond laser radiation

Authors:

K.S. Avetisov

FGBU "NII glaznykh bolezneĭ" RAMN

N.A. Bakhchieva

Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russia, 119021

S.É. Avetisov

FGBU "Nauchno-issledovatel'skiĭ institut glaznykh bolezneĭ" RAMN, Moskva

I.A. Novikov

Institute of Cardiology named after A.L. Myasnikov of National Medical Research Center for Cardiology, Moscow, Russia

N.V. Belikov

Bauman Moscow State Technical University, 5/12-aya Baumanskaya, Moscow, Russia, 105005

I.V. Khaidukova

State educational institution of higher professional education «South Ural State Medical University», Russian Ministry of Health, Chelyabinsk, Russian Federation

List of references:

  1. Iomdina EN, Bauer SM, Kotliar KE. Biomekhanika glaza: teoreticheskiye aspekti i klinicheskiye prilozheniya. M.: Real Time; 2015. (In Russ.)
  2. Fisher RF. Elastic constants of the human lens capsule. J Phisiol. 1969;201:1-19. PMID: 5773553.
  3. Fisher RF, Wakely J. The elastic constants and ultrastructural organization of a basement membrane (Lens Capsule). Proc R Soc. 1976;193:335-358. https://doi.org/10.1098/rspb.1976.0051
  4. Fisher RF, Hayes BP. Thickness and volume constants and ultrastructural organization of basement membrane (Lens Capsule). J Physiol. 1979;293:229-245. https://doi.org/10.1113/jphysiol.1979.sp012887
  5. Danielson CC. Tensile mechanical and creep properties of Descemet’s membrane and lens capsule. Exp Eye Res. 2004;79:343-350. https://doi.org/10.1016/j.exer.2004.05.014
  6. Krag S, Olsen T, Andreassen T. Biomechanical Characteristics of the Human Anterior Lens Capsule in Relation to Age. Invest Ophthalmol Vis Sci. 1997;38:357-363.
  7. Katargina LA. Akkomodatsiya. M.: Aprel’; 2012. (In Russ.)
  8. Rozanova OI, Schuko AG, Mikhalevich IM, Malishev VV. Patterns of eye structural and functional changes in presbyopia. Rossiyskiy oftalmol. zourn. 2011;2(1):62-66. (In Russ.)
  9. Harthi K, Shahwan S, Towerki A, Banerjee P, Behrens A, Edward D. Comparison of the anterior capsulotomy edge created by manual capsulorhexis and 2 femtosecond laser platforms: Scanning electron microscopy study. J Cataract Refract Surg. 2014;40(12):2106-2112. https://doi.org/10.1016/j.jcrs.2014.10.001
  10. Bala C, Xia Y, Meades K. Electron microscopy of laser capsulotomy edge: Interplatform comparison. J Cataract Refract Surg. 2014;40(8):1382-1389. https://doi.org/10.1016/j.jcrs.2013.11.045
  11. Mastropasqua A, Vecchiarino L, Di Iorio D. Scanning electron microscopy evaluation of capsulorhexis in femtosecond laser-assisted cataract surgery. J Cataract Refract Surg. 2013;39(10):1581-1586. https://doi.org/10.1016/j.jcrs.2013.06.016
  12. Ostovic M, Klaproth O, Hengerer F, Mayer W, Kohnen T. Light microscopy and scanning electron microscopy analysis of rigid curved interface femtosecond laser-assisted and manual anterior capsulotomy. J Cataract Refract Surg. 2013;39(10):1587-1592. https://doi.org/10.1016/j.jcrs.2013.07.024
  13. Schultz T, Joachim S, Tischoff I, Dick H. Histologic evaluation of in vivo femtosecond laser-generated capsulotomies reveals a potential cause for radial capsular tears. Eur J Ophthalmol. 2015;25(2):112-118. https://doi.org/10.5301/ejo.5000484
  14. Avetisov KS, Fedorov AA, Novikov IA. Light and scanning electron microscopy of anterior lens capsule following different capsulorhexis techniques. Vestnik oftal’mologii. 2015;131(6):4-10. (In Russ.) https://doi.org/10.17116/oftalma201513164-10
  15. Friedman NJ, Palanker DV, Schuele G, et al. Femtosecond laser capsulotomy. J Cataract Refract Surg. 2011;37:1189-1198. https://doi.org/10.1016/j.jcrs.2011.04.022
  16. Auffarth GU, Reddy KP, Ritter R, et al. Comparison of the maximum applicable stretch force after femtosecond laser-assisted and manual anterior capsulotomy. J Cataract Refract Surg. 2013;39:105-109. https://doi.org/10.1016/j.jcrs.2012.08.065
  17. Sandor GL, Kiss Z, Bocskai ZI, et al. Comparison of the Mechanical Properties of the Anterior Lens Capsule Following Manual Capsulorhexis and Femtosecond Laser Capsulotomy. J Cataract Refract Surg. 2014;30:660-664. https://doi.org/10.3928/1081597x-20140903-08
  18. Sandor GL, Kiss Z, Bocskai ZI, et al. Evaluation of the Mechanical Properties of the Anterior Lens Capsule Following Femtosecond Laser Capsulotomy at Differrent Pulse Energy Settings. J Cataract Refract Surg. 2015;31:153-157. https://doi.org/10.3928/1081597x-20150220-02
  19. Lua RM, Oertle P, Camenzind L, et. al. Superior Rim Stability of the Lens Capsule Following Manual Over Femtosecond Laser Capsulotomy. Inv Opthalmol & Vis Sci. 2016;57:2839-2849. https://doi.org/10.1167/iovs.15-18355
  20. Pedrigi RM, Dziezyc J, Humphrey JD. Altered mechanical behavior and properties of the human anterior lens capsule after cataract surgery. Exp Eye Res. 2009;89:575-580. https://doi.org/10.1016/j.exer.2009.06.001
  21. Werner L, Jia G, Sussman G, et al. Mechanized model to assess capsulorhexis resistance to tearing. J Cataract Refract Surg. 2010;36:1954-1959. https://doi.org/10.1016/j.jcrs.2010.05.026
  22. Thompson VM, Berdahl JP, Solano JM, Chang DF. Comparison of Manual, Femtosecond Laser and Precision Pulse Capsulotomy Edge Tear Strength in Paired Human Cadaver Eyes. Ophthalmology. 2016;123:265-274. https://doi.org/10.1016/j.ophtha.2015.10.019
  23. Avetisov KS, Bakhchieva NA, Avetisov SE, Novikov IA, Belikov NV, Khaydukova I. Biomechanical aspects of anterior capsulotomy in cataract surgery. Vestnik oftal’mologii. 2017;133(3):82-88. (In Russ.) https://doi.org/10.17116/oftalma2017133382-88
  24. Chan N, Pattamatta U, Butlin M, Meades K, Bala C. Intereye comparison of femtosecond laser — assisted cataract surgery capsulotomy and manual capsulorhexis edge strength. J Cataract Refract Surg. 2017;43:480-485. https://doi.org/10.1016/j.jcrs.2016.12.033

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