Thank you Lisa, and thank you all for joining our call this afternoon. With several key developments during and since the first quarter, I believe Second Sight is better positioned than ever before to treat the blind by expanding the reach of our Argus solution and advancing our Orion technology. I'd first like to review key changes to our management team and board of directors. Let me begin by welcoming John Blake to his first call as Second Sight CFO. John is a seasoned financial executive with broad life sciences industry experience and a track record of delivering results. I am pleased that he has joined Second Sight's leadership team and that I will be working with him once again. I'd also like to take a moment to thank Tom Miller for his many contributions to the company. Tom was a valued member of the management team and integral to the company's successful IPO. He graciously helped ensure a seamless transition to John and we wish him well. As you know, in April, we announced the resignation of Dr. Robert Greenberg from our Board of Directors and as an officer of the company. Bob is a pioneer in the industry and as contributed extensively to expanding options for the blind. I enjoyed working with Bob to advance Second Sight's breakthrough technologies and bring them to market worldwide. Second Sight has benefited from his clinical insights and extensive industry and technical knowledge. On behalf of the entire leadership team, we sincerely appreciate his contributions over the years and wish him well. Also, as previously announced in March, Gregg Williams was appointed Chairman of the Board. As a board member, he has provided valuable guidance to the leadership team and we appreciate his continued confidence in the strategy and future of our business as demonstrated by his $2 million investment last week. Gregg's investment provide Second Sight with funding to achieve key commercial and development milestones this year, including completing enrollment of the Orion feasibility study and continuing to gather clinical data to support safety and efficacy of this breakthrough technology, further implementation of our Centers of Excellence strategy to drive adoption of the Argus II, completing development of our next-generation Argus II externals and seeking regulatory approvals, and pursuing regulatory approvals to treat better vision patients in order to expand the treatable population for Argus II. So let me now turn to a discussion of our business during and since the first quarter and what we believe will be a significant year ahead. Let's start with a very exciting progress we're making with our Orion. On January 30th of this year, we implemented our first human subject at the Ronald Reagan UCLA Medical Center or UCLA. We have since been successfully activated as part of our feasibility study. As a reminder, we are conducting a five-subject feasibility study at UCLA and the Baylor College of Medicine in Houston. I'm very pleased to report that four of the five Orion study subjects have now been implanted. The fifth surgery has not been scheduled yet but is expected to occur later this quarter. The first two subjects have been activated and the stimulation sessions have gone well. You may recall that the testing is phased with each of the 60 electrodes being stimulated individually during the first phase. The first two subjects have perception or see spots of light from all sixty electrodes. The next phase of testing includes spatial mapping which the process of determining where each electrode produces a spot of light in the subject's visual field. The spatial mapping is underway with the first two subjects and the results appear consistent and the process is progressing as expected. The next phase of testing involves actually turning on a subject's camera. The first subject's camera has been turned on and he can locate light and is practicing head scanning and other visual skills. It's also important to note that there have been no serious adverse events. To be clear, I am quite pleased with our stimulation and spatial mapping results and early testing has exceeded my expectations. Looking forward, we will activate and begin stimulation testing for subjects three and four in the near future. We will also begin testing our first two patients with real-time video input from the camera. The video will be converted by algorithms into signals that stimulate the electrodes in patterns creating artificial vision. I look forward to updating you on our progress during future calls. As part of the breakthrough device program, Orion is eligible for priority review by the FDA. Last week, we completed our initial submission to the FDA and requested a meeting at the next step. Our goal is to advance the discussions with the FDA sufficiently, so that we can update investors later this year regarding the clinical and regulatory path for Orion through to commercialization. Let's now turn to the Argus business. During Q1, we completed ten Argus II implants in North America and have begun Q2 with substantial momentum. Our Centers of Excellence strategy in the U.S. continues to gain traction and we now have a full team in place covering the entire US. Due to our patient outreach efforts, our patient database has grown to over 160 clinician-qualified US patients, up from 125 in early March and 89 at the end of the third quarter. We expect the database to be a growing source of individuals qualified for an Argus implant. In fact, four individuals implanted in North America during the first quarter came from the database and an additional eleven are currently scheduled for surgery later this year. In Canada, the Ontario Ministry of Health and Long-Term Care approved funding for the Argus II based on the previously discussed recommendations of the Ontario Health Technology Advisory Committee. Our center in Toronto is planning to evaluate two patients in the next 30 days, and we expect to implant our first patient under the reimbursement program shortly. With our Centers of Excellence strategy scaling nicely, our growing US patient database and expanded reimbursement in the US and Canada, we expect continued growth in the number of Argus II implants in North America. Turning to Europe, the Middle East, and Asia, we completed six implants during the first quarter of 2018. As discussed in the past, the business in this region is quite complex with many different markets and much more potential for variability than the North American market. With that said, the team is making good progress refining our overall commercial strategy and continuing to secure reimbursement in additional markets. In France, we currently have three sites approved to perform implants as part of the Forfait Innovation Program. As a reminder, the Forfait Innovation Program was launched to accelerate the introduction of promising medical innovation in France but also collecting data to support a longer-term reimbursement decision. We were the first company to be accepted in the program and are planning to submit a final report to the French reimbursement authority by mid-year. After reviewing the supporting data on the first 18 patients, we are optimistic that we will have a positive outcome and ultimately transition to national reimbursement, allowing us to expand the number of centers performing implants in France. We were also accepted in the NHS England's CtE or Commissioning through Evaluation innovation funding program which is similar to the program in France. This program is progressing slower than expected, and we now believe implants under the program will not begin until late 2018 or early 2019. Before discussing R&D, I'd like to highlight the success we've had in our distributor markets since revamping our strategy in late 2016. In the five new markets we've entered since early 2017, we have completed a total of 17 implants, with three markets completing four or more implants each. Overall, we've had great results with some impressive patient outcomes as well. Turning to R&D, we remain focused on improving the Argus technology so that we can not only improve the experience of the current Argus users but also expand our adjustable market to reach better vision RP patients for whom our technology could make a meaningful difference. On that front, we are developing new externals and advanced stimulation programs, design work for our next-generation externals, which include the eyewear, camera, and VPU has been completed and testing is in process. We remain on track to complete regulatory submissions this summer with a launch anticipated in late 2018. Once our next generation externals are ready, we will be able to continue testing various advanced stimulation programs on the newer more capable platform. Again, we are hopeful that these new stimulation programs will improve the quality and/or usefulness of the vision provided to a portion of our patients. We submitted an HDE supplement to the FDA during the first quarter requesting a change to our label in the US that would expand the patient population treatable by Argus II. We are in discussions with the FDA concerning our submission and remain optimistic about our ability to expand the label in the US and we'll update you as appropriate. On a related note, we have made a decision to delay moving forward with our better vision RP trial in Germany given our desire to focus on the substantially larger US market. With that, I would like to now turn the call over to John to review our first quarter financial results. John?