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Membranectomy with optic capture in a paediatric patient with VAO
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  1. Sudarshan Khokhar,
  2. Deeksha Rani,
  3. Antriksh Wahi and
  4. Debarun Sharma
  1. Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, Delhi, India
  1. Correspondence to Dr Deeksha Rani; deekshamedico{at}gmail.com

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Description

Visual axis opacification (VAO) is a common complication of paediatric cataract surgery.1 Posterior continuous curvilinear capsulorhexis (PCCC) and good anterior vitrectomy are known to reduce the prevalence of VAO. Inadequate anterior vitrectomy may be a cause of VAO, where retained anterior hyaloid phase may act as a scaffold for proliferation of lens epithelial cells.2 Optic capture is another technique that has been described to prevent the formation of VAO.3 We describe the case of a 4-year-old female child with operated lens aspiration with PCCC with anterior vitrectomy with a three piece intraocular lens (IOL) in the sulcus, and presented to us with clinically significant VAO.

The 4-year-old pseudophakic female child was referred to our centre for management of a visually significant VAO in the left eye. Antenatal history was uneventful. The child was born at full term by lower segment caesarean section in view of oligohydramnios. She had a birth weight of 3 kg. There was no history of neonatal intensive care unit (NICU) stay in postnatal period. She is a known case of cerebral palsy (mixed type) with global development delay. She was diagnosed with unilateral cataract at the age of 2 years and 7 months and was operated for left eye lens aspiration with PCCC with anterior vitrectomy, and a three-piece IOL was placed in the sulcus. On follow-up, she was diagnosed with left-eye VAO, first identified 3 months after surgery. She was referred to our centre for the management of the same.

The child presented to us at the age of 4 years. On distant direct ophthalmoscopy, we found a total cataract in right eye and VAO involving central visual axis in the left eye. The child was scheduled for examination under anaesthesia followed by right-eye lens aspiration with PCCC with anterior vitrectomy with IOL in bag and membranectomy in the left eye in two different sittings. Surgery of the right eye went uneventful. Examination Under Anaesthesia (EUA) findings of the left eye revealed central fibrous VAO (figure 1A) with decentred three-piece IOL in the sulcus. Ultrasound biomicroscopy revealed IOL in the sulcus with hyperechoic membrane posterior to the IOL (figure 1B).

Figure 1

(A) Preoperative clinical picture (CP) of the left eye (OS). (B) Ultrasound biomicroscopy (UBM) showing hyperechoic membrane posterior to IOL. (C) Intraoperative still showing membranectomy. (D) Well-centred IOL with optic capture. IOL, intraocular lens.

Two 1 mm side ports were made and viscoelastic was injected in the anterior chamber, and free mobilisation of the IOL was confirmed with sinskey hook. Posterior membrane was removed using anterior vitrector on cut-irrigation/aspiration mode. It was noted that anterior and posterior capsulorhexis margins were adherent to each other. Around 5 mm opening was made and optic of three-piece IOL was captured behind the sulcus margins. Stability of the IOL was confirmed; irrigation and aspiration of viscoelastic were done and wounds were hydrated (video 1). Postoperative day 1 showed central and stable IOL with a postoperative retinoscopy of +1.25 D on vertical axis and +1.75 D on horizontal axis (at 50 cm). The child was prescribed spherical equivalent with +2D near add and was started on topical antibiotics, steroids and cycloplegics with appropriate tapering. On 1-week follow-up, the visual axis of both eyes was clear with well-centred IOLs in both eyes. The child is kept on follow-up.

Video 1

Learning points

  • Posterior continuous curvilinear capsulorhexis with inadequate anterior vitrectomy can cause a clinically significant visual axis opacification.

  • Three-piece intraocular lens (IOL) placed in the sulcus without optic capture is prone to decentration even in the presence of a good sulcus. Thus, the surgeon must always attempt to capture the optic of IOL while inserting a three-piece IOL.

Ethics statements

Patient consent for publication

References

Footnotes

  • Contributors Planning of treatment and conducting procedure: SK. Acquisition of data and video editing: AW and DS. Preparation of the manuscript: DR.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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