PURPOSE To analyze the benefits, efficacy, and complications of the PASCAL((R)) photocoagulation laser system (OptiMedica, Santa Clara, CA, USA) in patients treated at our institution. METHODS We conducted a retrospective chart review of 19 patients (28 eyes) who underwent laser treatment using the PASCAL((R)) photocoagulation system from November 2006 to November 2007. These 28 eyes were div...

This article illustrates the detection of 6 degrees of freedom (DOF) for Virtual Environment interactions using a modified simple laser pointer device and a camera. The laser pointer is combined with a diffraction grating to project a unique laser grid onto the projection planes used in projection-based immersive VR setups. The distortion of the projected grid is used to calculate the translati...

background: an effective method for management of large and bulky malignant tumors. this treatment modality is also known as specially fractionated radiation therapy (sfrt). in this treatment technique a grid block converted the open radiation field into a series of pencil beams. dosimetric characteristics of an external beam grid radiation field have been investigated using experimental and mo...

AIMS To determine the effect of modified macular grid photocoagulation in patients with refractory macular oedema due to uveitis or cataract extraction. METHODS In this study 20 patients with macular oedema underwent modified macular grid laser photocoagulation and were followed by means of standardised examinations (day 0, months 2, 6, and 12) consisting of best corrected visual acuity and f...

the rapid melting of a semi- infinite body due to the absorption of a cw laser beam radiation has been studied. the enthalpy technique for the solution of phase change problems has been used in an explicit finite difference form to calculate the transient temperature distribution in the semi-infinite body and the growth rate of the melt pool. the technique has been modified so that it is not ne...

OBJECTIVE To compare the efficacy of intravitreal triamcinolone acetonide (IVTA) and IVTA plus macular laser grid photocoagulation therapy in diffuse diabetic macular edema (DME). MATERIAL AND METHODS Sixteen patients affected by diffuse DME were retrospectively evaulated. Patients were divided into two groups: control group (IVTA injection) and laser group (IVTA plus grid laser). Main outcom...

PURPOSE To assess the efficacy of intravitreal 0.5 mg ranibizumab for the treatment of center-involving macular edema secondary to branch retinal vein occlusion (BRVO) over 1 year compared with standard-of-care grid laser. DESIGN A prospective randomized controlled clinical trial. METHODS A total of 36 patients with vision loss in 1 eye attributable to macular edema following BRVO were recr...