[Preliminary study of Boston keratoprosthesis in treatment of severe late stage ocular chemical burns].

Objective: To evaluate preliminary clinical outcome of Boston type I keratoprosthesis in ocular chemical burn patients.

Methods: Six keratoprosthesis were implanted into 6 patients of bilateral blindness. Visual acuity in these patients before the operation was light perception and all of them were unsuitable for standard penetrating corneal transplantation.

Out-of-the-bag intraocular lens dislocation: outcomes of posterior chamber intraocular lens exchange, risk factors, and prevention.

Background: Dislocation of posterior chamber intraocular lens is one of the most common complications of intraocular lens implantation. Lens exchange is an effective solution to this unsatisfactory status. This study was conducted to analyze the possible predisposing factors for out-of-the-bag posterior chamber intraocular lens dislocation and to study the outcomes of lens exchange surgery.

[The effects of transplantation of compound keratoprosthesis in clinical practice and managements of complications after operation].

Objective: To explore the clinical value and management of complications of the transplantation of Titanium skirt compounded keratoprosthesis for severe corneal blindness eyes.

Methods: It was a retrospective case series study. Nine eyes from 9 male patients, aged 28 to 52 years old, accepted permanent keratoprosthesis transplantation in Zhongshan Ophthalmic Center from March 2002 to June 2005.

[Preliminary outcome of large-diameter lamellar keratoplasty combined with deep lamellar endothelial keratoplasty for whole cornea destruction].

Objective: To understand the indication, surgical principle, outcome and complications of large-diameter lamellar keratoplasty combined with deep lamellar endothelial keratoplasty for whole cornea destruction.

Methods: Eleven hospitalized patients with whole cornea destruction in Zhongshan Ophthalmic Center, Sun Yat-Sen University from May, 2005 to March, 2006 were involved in this study. Five left eyes and six right eyes underwent large-diameter lamellar keratoplasty combined with deep lamellar endothelial keratoplasty.

[Preliminary clinical study of sutureless, small-incision deep lamellar endothelial keratoplasty surgery].

Objective: To investigate the surgical procedure, clinical efficacy, and the prevention and management of complications of sutureless, small-incision deep lamellar endothelial keratoplasty (DLEK).

Methods: Nine patients (nine eyes) with bullous keratopathy underwent sutureless, small-incision DLEK surgery, six of them was combined with anterior vitrectomy. Visual acuity, graft clearance, corneal curvature, astigmatism and endothelial cell density (ECD) were observed over a 3 - 5 month follow-up period.

[Microkeratome-assisted deep lamellar endothelial keratoplasty].

Objective: To observe the indication, surgical principle, clinical results and complications of microkeratome-assisted deep lamellar endothelial keratoplasty (DLEK).

Methods: DLEK was performed in six patients with bullous keratopathy. One of the six patients underwent DLEK combined with vitrectomy under temporary artificial corneal and intraocular foreign-body removal.