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2 peripheral scatter photocoagulation for neovascularization associated with pars planitis. 1995

S E Park, and W F Mieler, and J S Pulido
Department of Ophthalmology, Medical College of Wisconsin, Milwaukee, USA.

BACKGROUND Peripheral cryotherapy appears to be efficacious in the treatment of neovascularization of the vitreous base in patients with pars planitis, although it may be associated with the development of rhegmatogenous retinal detachments. OBJECTIVE To evaluate the safety and efficacy of peripheral scatter photocoagulation for treatment of neovascularization of the vitreous base when used alone or combined with pars plana vitrectomy. METHODS Six patients (10 eyes) presented with vitritis, cystoid macular edema, and neovascularization of the vitreous base, unresponsive to corticosteroid therapy. Three patients (five eyes) received scatter diode or argon photocoagulation treatment alone. The other three patients (five eyes) underwent pars plana vitrectomy coupled with argon or diode photocoagulation, placed in three rows, posterior to the area of inferior neovascularization of the vitreous base. RESULTS Pretreatment visual acuity ranged from 20/20 to 20/200. All patients were followed up for a minimum of 6 months. After placement of photocoagulation (with or without concurrent pars plana vitrectomy), the neovascularization regressed, inflammation was stabilized, and cystoid macular edema improved in all eyes. There were no retinal detachments or other complications of treatment. Posttreatment visual acuity ranged from 20/20 to 20/100. When final visual acuity was 20/40 or less, cataract formation was generally responsible. CONCLUSIONS Peripheral scatter photocoagulation is efficacious and appears at least equal to peripheral cryotherapy in causing regression of neovascularization of the vitreous base in patients with pars planitis.

UI MeSH Term Description Entries
D008269 Macular Edema Fluid accumulation in the outer layer of the MACULA LUTEA that results from intraocular or systemic insults. It may develop in a diffuse pattern where the macula appears thickened or it may acquire the characteristic petaloid appearance referred to as cystoid macular edema. Although macular edema may be associated with various underlying conditions, it is most commonly seen following intraocular surgery, venous occlusive disease, DIABETIC RETINOPATHY, and posterior segment inflammatory disease. (From Survey of Ophthalmology 2004; 49(5) 470-90) Central Retinal Edema, Cystoid,Cystoid Macular Edema,Macular Edema, Cystoid,Cystoid Macular Dystrophy,Cystoid Macular Edema, Postoperative,Irvine-Gass Syndrome,Macular Dystrophy, Dominant Cystoid,Edema, Cystoid Macular,Edema, Macular,Irvine Gass Syndrome,Syndrome, Irvine-Gass
D008297 Male Males
D009389 Neovascularization, Pathologic A pathologic process consisting of the proliferation of blood vessels in abnormal tissues or in abnormal positions. Angiogenesis, Pathologic,Angiogenesis, Pathological,Neovascularization, Pathological,Pathologic Angiogenesis,Pathologic Neovascularization,Pathological Angiogenesis,Pathological Neovascularization
D010865 Pilot Projects Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work. Pilot Studies,Pilot Study,Pilot Project,Project, Pilot,Projects, Pilot,Studies, Pilot,Study, Pilot
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014792 Visual Acuity Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast. Acuities, Visual,Acuity, Visual,Visual Acuities

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