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Intraocular lens dislocation and tube shunt in the posterior chamber: a case report

Moreno-Montañés J(1) [ES], Velázquez-Villoria A(2), Sabater AL(3), Salinas-Alamán A(4) [ES].

(1) Department of Ophthalmology, Clínica Universidad de Navarra, Universidad de Navarra, Avda. Pio XII, 36-31008, Pamplona, Spain.
(2) Department of Ophthalmology, Clínica Universidad de Navarra, Universidad de Navarra, Avda. Pio XII, 36-31008, Pamplona, Spain.
(3) Department of Ophthalmology, Clínica Universidad de Navarra, Universidad de Navarra, Avda. Pio XII, 36-31008, Pamplona, Spain.
(4) Department of Ophthalmology, Clínica Universidad de Navarra, Universidad de Navarra, Avda. Pio XII, 36-31008, Pamplona, Spain.

Revisão:BMC Ophthalmology

Data: 21/Jun/2015

Oftalmologia [ES]

BACKGROUND:
To describe management of a case of intraocular lens (IOL) and capsular bag (CB) dislocation in an eye with an Ahmed glaucoma valve in the posterior chamber.

CASE PRESENTATION:
A 75-year-old pseudophakic man with open-angle glaucoma and diabetic retinopathy developed neovascular glaucoma. After two intravitreous injections of bevacizumab and panretinal photocoagulation were administered, the new vessels regressed. However, goniosynechiae were observed over 360° of the angle. An Ahmed glaucoma valve model FP7 was implanted with the tube in the posterior chamber with adequate intraocular pressure control. Nineteen years after cataract surgery, when the IOL-CB complex became dislocated, they were sutured transclerally to the sulcus without Ahmed glaucoma valve modification. After a coughing episode, the vitreous pushed the IOL-CB complex forward and the tube was behind the IOL-CB complex. A 25-gauge posterior vitrectomy was performed, and the tube was returned to in front of the optic of the IOL using a forceps tip through a sclerotomy.

CONCLUSION:
This case suggested that management of IOL-CB dislocation can modify glaucoma shunt function. A complete pars plana vitrectomy may be required in order to reposition the dislocated IOL-CB complex in the presence of a posterior chamber drainage tube implant.

CITAÇÃO DO ARTIGO  BMC Ophthalmol. 2015 Jun 21;15(1):63. doi: 10.1186/s12886-015-0046-7.

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