title: Vitrectomy-assisted phacoemulsification for lenticular coloboma.
abstract: We describe a technique to prevent continuous vitreous hydration during phacoemulsification in eyes with lenticular coloboma. The hydration results from communication between the anterior and posterior chambers from the edges of the colobomatous defect. To avoid this, a valved trocar is placed at the pars plana site around the area of the lenticular defect, which allows a limited dry vitrectomy during phacoemulsification. Intermittent vitrectomy with a moderate cutting rate and low vacuum parameters accompanied by temporary halting of the phacoemulsification procedure prevents vitreous herniation into the anterior chamber and limits the extension of zonular compromise, facilitating safe phacoemulsification with appropriate capsule expansion and fixation devices and implantation of an intraocular lens.
authors.affiliation: From Dr. Agarwal's Eye Hospital & Research Centre (Ashvin Agarwal, Amar Agarwal), Chennai, and the Narang Eye Care & Laser Centre (Narang), Ahmedabad, India.
authors.forename: Ashvin
authors.initials: A
authors.lastname: Agarwal
authors.affiliation: From Dr. Agarwal's Eye Hospital & Research Centre (Ashvin Agarwal, Amar Agarwal), Chennai, and the Narang Eye Care & Laser Centre (Narang), Ahmedabad, India.
authors.forename: Priya
authors.initials: P
authors.lastname: Narang
authors.affiliation: From Dr. Agarwal's Eye Hospital & Research Centre (Ashvin Agarwal, Amar Agarwal), Chennai, and the Narang Eye Care & Laser Centre (Narang), Ahmedabad, India. Electronic address: dragarwal@vsnl.com.
authors.forename: Amar
authors.initials: A
authors.lastname: Agarwal
mesh_terms: D002387:Cataract Extraction / Q000379:methods; D003103:Coloboma / Q000601:surgery; D006801:Humans; D007910:Lenses, Intraocular; D018918:Phacoemulsification / Q000379:methods; D014821:Vitrectomy / Q000379:methods