https://doi.org/10.31288/oftalmolzh2016137

Optimization of cataract phacoemulsification methods with phakic intraocular lenses

D.O. Marshava¹, Doctor,

D.Sh. Sichinava², Professor

1 Multiprofile clinics L/J; Kutaisi (Georgia)

2 Chavchavadze Tbilisi State University; Tbilisi (Georgia)

E-mail: marshava-david@mail.ru

Introduction. Development and advancement of bilensectomy technique are essential, since the number of implanted phakic IOL is rising every year.

Purpose. To optimize  the location of surgical instruments during phacoemulsification of the eyes with phakic intraocular lenses.

Material and methods. The work is dedicated to the simulation of liquid flows in ocular anterior chamber when performing bilensectomy. A few types of cataract phacoemulsification for an eye not operated before and an eye with implanted phakic IOL were considered.

Results. Washing time was set for bimanual and coaxial phacoemulsification as well as for coaxial phacoemulsification with PIOL. The integral rate in the central part of cornea (a measure of friction force) was 0.0032 m/s and 0.0015 m/s in the bimanual and coaxial surgery, respectively.

Conclusion. The data received allow pursuing further studies in this area that provides increasing of efficacy and bilensectomy safety.

Key words:cornea, phakic intraocular lenses, phacoemulsification, computer simulation         

References

1.      Agafonova VV. Correction of ametropy via intraocular phakic lens: Thesis of M.D. М.;2006:354. Russian.

2.      Malyugin BE. Medical and technological system of surgical recuperation of patients with cataract, based on suprasonic phacoemulsification together with implantation of IOL. Thesis of... M.D. M.: S.N. Fyodorov Eye Microsurgery Interbranch Scientific and Technical Complex “Eye microsurgery”. 2002. Russian.

3.      Marchenkova TE, Bubnov AV, Kholodov АS. [Mathematical modeling of irrigation and aspiration technique of phacoemulsification]. Ofthalmokhirurgiia. 1991;1:74-84. Russian.

4.      Moskalev IV. [Characteristics of measurement of translating bodies with free surface in FLOWVISION HPC. General recommendations for organization and settlement]. In: Proceedings of all-Russian research and practice conference “Engineering systems-2008”. 2008:74-84. Russian.

5.      Tiblevich IV. Analysis of the results of cataract extraction with one-piece intraocular lens implantation from PMMA: Thesis of M. D. М.;2001:108. Russian.

6.      Brauweiler PH, Wehler T, Busin M. High incidence of cataract formation after implantation of a silicone posterior chamber lens in phakic, highly myopic eyes. Ophthalmology. 1999;106(9):1651-1655.

7.      Caramello G, Di Fortunato R. Three years experience of ICL implantation in high myopia. In: Congress of the ESCRS, 16th: Abstracts. Nice. 1998.

8.      Colin J. Bilensectomy: the implications of removing phakic intraocular lenses at the time of cataract extraction. J. Cataract Refract. Surg. 2000;26(1):2-3.

9.      Gasser L, Biermann J, Reinhard T. New posterior chamber phakic intraocular lens for high myopia: Three-year results. Journal of Cataract & Refractive Surgery. 2015;41(8):1610–1615.

10.  Gross S, Knorz MC, Liermann A et al. Results of implantation of a Worst Iris Claw Lens for correction of high myopia. Ophthalmologe. 2001;98(7):635-638.

11.  Jos? F. Alfonso, Carlos Lisa, Luis Fern?ndez-Vega et al. Prevalence of cataract after collagen copolymer phakic intraocular lens implantation for myopia, hyperopia, and astigmatism. Journal of Cataract & Refractive Surgery. 2015; 41(4):800-805.
      Crossref    Pubmed

12.  Kohnen T. Cataract formation after implantation of myopic phakic posterior chamber IOLs. Journal of Cataract & Refractive Surgery. 2004;30(11):2245–2246.
      Crossref    Pubmed

13.  Laurence C Lesueur, Jean L  Arne. Phakic posterior chamber lens implantation in children with high myopia. Journal of Cataract & Refractive Surgery. 1999;25(12):1571–1575.  
        Crossref      Pubmed