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PASCAL® Synthesis™ TwinStar™ Ophthalmic Scanning Laser System is intended for use to perform single-spot photocoagulation in the posterior segment (retina, choroid) and in the anterior segment (iris, trabecular meshwork) as well as pattern-scanning photocoagulation in the non-macular retina of the eye. Single-spot delivery may be performed using a slit lamp biomicroscope or an indirect ophthalmoscope. Pattern delivery may be performed using a slit lamp biomicroscope.

PASCAL® Synthesis™ TwinStar™ is an ophthalmic scanning laser system. The system can perform single shot photocoagulation as is performed conventionally. At the physician's discretion, the system provides for a single laser spot treatment or the option of using a selectable pattern of delivering multiple laser spots simultaneously. Pattern scanning allows the physician to enhanced efficiency and reduced patient discomfort. The PASCAL Synthesis™ Laser System (parent product to the PASCAL Synthesis Twinstar™) included 532 nm/577 nm wavelengths and was cleared via K123542. The subject device for this submission is a line extension named PASCAL Synthesis Twinstar and will include 577 nm/638 nm laser wavelengths.

The PASCAL® Laser Indirect Ophthalmoscope is intended for use with the PASCAL Streamline 577 laser or the PASCAL Streamline 532 laser when either of those lasers is used in the treatment of ocular pathology in the posterior segment; retinal photocoagulation, panretinal photocoagulation, focal photocoagulation and grid photocoagulation for vascular and structural abnormalities of the retina and choroid including: 532nm - . macular edema - age-related macular degeneration . - . lattice degeneration - . retinal tears and detachments 577nm - proliferative and nonproliferative diabetic retinopathy . - macular edema . - choroidal neovascularization . - . branch and central retinal vein occlusion - . age-related macular degeneration - . lattice degeneration - retinal tears and detachments . - retinopathy of prematurity . Intended for use in the treatment of ocular pathology in the anterior segment including: 577nm - iridotomv . - trabeculoplasty .

The PASCAL Laser Indirect Ophthalmoscope (LIO) with eye safety filter is a non-sterile, multiple use, delivery device that is worn on the physician's head and is used in conjunction with a compatible hand held ophthalmoscopic examination lens to view and treat the patient's retina. LIOs are used to treat patients in a supine position or who could not otherwise be treated using a slit lamp delivery system.