Abstract |
The purpose of this article is to demonstrate the utility of the large spot size (LSS) setting using a binocular laser indirect delivery system for peripheral ablation in children. One patient with bilateral retinopathy of prematurity received photocoagulation with standard spot size burns placed adjacently to LSS burns. Using a pixel analysis program called Image J on the Retcam picture, the areas of each retinal spot size were determined in units of pixels, giving a standard spot range of 805 to 1294 pixels and LSS range of 1699 to 2311 pixels. Additionally, fluence was calculated using theoretical retinal areas produced by each spot size: the standard spot setting was 462 mJ/mm2 and the LSS setting was 104 mJ/mm2. For eyes with retinopathy of prematurity, our study shows that LSS laser indirect delivery halves the number of spots required for treatment and reduces fluence by almost one-quarter, producing more uniform spots.
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Authors | Saranya C Balasubramaniam, Brian G Mohney, Genie M Bang, Thomas P Link, Jose S Pulido |
Journal | Archives of ophthalmology (Chicago, Ill. : 1960)
(Arch Ophthalmol)
Vol. 130
Issue 9
Pg. 1213-7
(Sep 2012)
ISSN: 1538-3601 [Electronic] United States |
PMID | 22965604
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Topics |
- Adolescent
- Child
- Female
- Humans
- Infant
- Infant, Newborn
- Laser Coagulation
(instrumentation, methods)
- Male
- Ophthalmoscopes
- Pars Planitis
(surgery)
- Retinal Telangiectasis
(surgery)
- Retinal Vasculitis
(surgery)
- Retinopathy of Prematurity
(surgery)
- Retrospective Studies
- Treatment Outcome
- Visual Acuity
(physiology)
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