25-gauge scleral tunnel transconjunctival vitrectomy.

Purpose: To compare the intraocular fluid leakage rate between 25-gauge (25G) transconjunctival vitrectomy with scleral tunnels and standard 25G transconjunctival vitrectomy.

Design: Single-center, retrospective, interventional case series.

Methods: Transconjunctival vitrectomies were conducted by the use of only 25G instruments with peripheral vitrectomy.

Clinicopathological findings of retinal angiomatous proliferation.

Background: Neovascular membranes obtained from surgical excision of neovascularization for retinal angiomatous proliferation (RAP) were examined histopathologically in an attempt to elucidate the pathogenic mechanism of RAP.

Methods: Nine eyes of eight patients (mean age, 79 +/- 6 years) who underwent neovascularization excision were studied. Three eyes had stage II with RPE detachment, six had stage III.

Expanded indications for 25-gauge transconjunctival vitrectomy.

Purpose: We conducted 25-gauge (25G) transconjunctival vitrectomy to treat patients with various ocular diseases, and examined the possibility of expanding the indications for this system through combined use with 20G devices when needed.

Methods: The records of 167 patients (169 eyes) who underwent vitrectomy in our hospital between April and June 2004 were studied. Vitrectomy had been conducted using the 20G or 25G transconjunctival vitrectomy system.

Surgical excision of type 1 + 2 choroidal neovascularization in age-related macular degeneration.

Purpose: To evaluate the visual acuity outcome and the various factors influencing visual outcome in patients undergoing surgical removal of type 1 + 2 choroidal neovascularization (CNV) caused by age-related macular degeneration (AMD).

Methods: We studied the records of 54 patients (54 eyes) followed for at least 1 year after surgical excision of CNV associated with AMD.

Results: The final visual acuity was 0.

Surgical excision of type 2 choroidal neovascularization in age-related macular degeneration.

Purpose: To evaluate the visual acuity outcome and the influence of various factors on visual outcome in patients undergoing surgical removal of type 2 choroidal neovascular neovascularization (CNV) caused by age-related macular degeneration (AMD).

Methods: We studied the records of 92 patients (92 eyes) who were followed for at least 1 year after surgical excision of CNV associated with AMD.

Results: The final visual acuity was 0.

Surgical excision of neovascularization in retinal angiomatous proliferation.

Background: We report the postoperative outcomes of surgical neovascularization excision in patients with retinal angiomatous proliferation (RAP).

Methods: Nine eyes of eight patients with RAP who underwent surgical excision of neovascularization were studied. Surgical indications were as follows: RAP diagnosed by fluorescein and indocyanine green angiography, foveal or perifoveal neovascularization, preoperative visual acuity of 0.

Twenty-gauge Transconjunctival Vitrectomy.

Purpose: To describe a new 20-gauge transconjunctival vitrectomy procedure that we designed, to evaluate its usefulness, and to compare two different methods of use.

Methods: The records of 431 patients (433 eyes) who underwent 20-gauge transconjunctival vitrectomy at the Surugadai Hospital of Nihon University between March 2003 and January 2004 were studied retrospectively. In surgical method 1, 20-gauge wounds were made through the conjunctiva and sclera together.

[Surgical removal of juxtafoveal and extrafoveal choroidal neovascularization in age-related macular degeneration].

Purpose: In the treatment of age-related macular degeneration (AMD), the effect on the fovea of photocoagulation of juxtafoveal choroidal neovascularization(CNV) and extrafoveal CNV near the fovea has been of concern, and so usefulness of surgical excision of CNV was evaluated.

Subjects And Methods: Fifteen eyes with AMD that underwent removal of juxtafoveal CNV and extrafoveal CNV near the fovea and had been followed for over one year were included in this study. Eligibility criteria were preoperative visual acuity of 0.

A study of laser photocoagulation for polypoidal choroidal vasculopathy.

Purpose: To evaluate the efficacy of laser photocoagulation for polypoidal choroidal vasculopathy (PCV) involving the macula.

Methods: The records of 38 patients (47 eyes) undergoing laser photocoagulation for PCV causing serosanguineous detachment involving the fovea were reviewed and the results were evaluated. Ten eyes underwent photocoagulation to induce a fusion scar covering whole lesions consisting of both abnormal vessels and polypoidal lesions.