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LETTER TO EDITOR
Year : 2010  |  Volume : 58  |  Issue : 4  |  Page : 350-351

Late posterior subluxation of rollable intraocular lens after an uneventful microphacoemulsification cataract surgery


National Institute of Ophthalmology, Pune, India

Date of Web Publication7-Jun-2010

Correspondence Address:
Aditya S Kelkar
1219 Y Nis Y Nos Society, Deccan Gymkhana, Pune-411 004
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.64144

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How to cite this article:
Kelkar AS, Kelkar JA, Kelkar SB, Shaikh AI. Late posterior subluxation of rollable intraocular lens after an uneventful microphacoemulsification cataract surgery. Indian J Ophthalmol 2010;58:350-1

How to cite this URL:
Kelkar AS, Kelkar JA, Kelkar SB, Shaikh AI. Late posterior subluxation of rollable intraocular lens after an uneventful microphacoemulsification cataract surgery. Indian J Ophthalmol [serial online] 2010 [cited 2020 May 26];58:350-1. Available from: http://www.ijo.in/text.asp?2010/58/4/350/64144

Dear Editor,

We report a rare complication of late posterior subluxation of rollable intraocular lens (IOL) after an uneventful microphacoemulsification cataract surgery. A 60-year-old non-diabetic, non-hypertensive male patient was operated for microphacoemulsification, phaco chop technique for senile cataract in the right eye using 0.9 mm limbal incision which was enlarged to 1.5 mm and an acrylic rollable IOL (micriol, Eyeol, UK, optic size: 5.0 mm, overall length: 11.0 mm) was implanted in the bag. The patient regained 20/20 vision (on Snellen's chart) at the end of six weeks of follow-up and had no complaints. Then after three months the patient returned with decrease in vision in the right eye (20/200). The slit-lamp examination revealed posterior capsular opacification with shrinkage of anterior capsule. Patient underwent uneventful YAG capsulotomy (around 2 mm diameter). Patient regained 20/20 vision at two weeks follow-up. However, two months later, patient returned with painless progressive diminution of vision (finger counting at 2 meters) with glare and uniocular diplopia. There was no history of trauma. The slit-lamp examination [Figure 1] and ultrasound biomicroscope [Figure 2] demonstrated posterior subluxation of the rollable IOL with vitreous prolapsed in the anterior chamber. The patient was subjected to IOL exchange procedure and anterior vitrectomy. The rollable IOL was explanted through the scleral tunnel and a rigid polymethyl methacrylate (PMMA) lens was implanted in the sulcus. The patient regained 20/20 vision on the next follow-up.

Microincisional cataract surgery is a safe procedure with a very short learning period for an experienced cataract surgeon and rollable ultrathin IOLs eliminate the need for enlargement of corneal incision. [1] However, the rollable IOLs having plate haptics have their own set of problems. The posterior dislocation of the plate haptic IOL has been known to occur after Nd:YAG capsulotomy. [2] Even the anterior luxation of plate haptic IOL has been reported. [3],[4]

It has been postulated that the shrinkage of the anterior capsule exerts centripetal forces on the ends of the plate haptics, causing the optic to move posteriorly and to exert pressure against the posterior capsule. If either the posterior or anterior capsule is disrupted by Nd:YAG laser treatment, the forces created by capsular contraction against the flexible lens may cause extension of radial tears and appear to be a substantial risk for further capsule-tearing, releasing the IOL into the vitreous cavity, even months later. The forces of capsular contraction can impart a spring-loading effect on plate haptic silicone lenses. Due to inadequate capsular adherence, these lenses are at risk of posterior dislocation from capsular rents following Nd:YAG laser treatment. [5]

It is important to have a close follow-up of patients with plate haptic rollable IOLs undergoing YAG capsulotomy. Patients should be warned of this rare possible complication. Vitrectomy and IOL exchange with rigid PMMA lens implantation in the sulcus seems to be effective in tackling this complication.

 
  References Top

1.
Cinhuseyinoglu N, Celik L, Yaman A, Arikan G, Kayank T, Kayank S. Microincisional cataract surgery and Thinoptx rollable intraocular lens implantation. Graefes Arch Clin Exp Ophthalmol 2006;244:802-7.   Back to cited text no. 1
    
2.
Petersen AM, Bluth LL, Campion M. Delayed posterior dislocation of silicone plate-haptic lenses after neodymium:yag capsulotomy. J Cataract Refract Surg 2000;26:1827-9.  Back to cited text no. 2
[PUBMED]  [FULLTEXT]  
3.
Flucher A, Rootman DS. Dislocation of a plate-haptic silicone intraocular lens into the anterior chamber. J Cataract Refract Surg 2001;27:169-71.  Back to cited text no. 3
    
4.
Kelkar AS, Kelkar SB, Kelkar JA, Karve SJ. Anterior luxation of rollable intraocular lens. Indian J Ophthalmol 2007;55:82-3.  Back to cited text no. 4
[PUBMED]  Medknow Journal  
5.
Dick B, Schwenn O, Stoffelns B, Pfeiffer N. Late dislocation of a plate haptic silicone lens into the vitreous body after Nd:YAG capsulotomy: A case report. Ophthalmologe 1998;95:181-5.  Back to cited text no. 5
[PUBMED]  [FULLTEXT]  


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This article has been cited by
1 Comment on rare complication of late posterior subluxation of a rollable intraocular lens after an uneventful microphacoemulsification cataract surgery
Koppikar, H.
Indian Journal of Ophthalmology. 2011; 59(3): 256
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