Our Team

Shelby Tyler is the Chief Operating and Financial Officer at KeraLink International, where she has dedicated more than 20 years to advancing the organization’s mission. Inspired by the impact KeraLink has had in expanding access to vision care for countless individuals, she brings extensive financial and operational expertise to strengthen the organization’s programs and long-term sustainability.

Shelby began her career at Johns Hopkins University, where she optimized resource allocation and enhanced cross-departmental collaboration. She went on to support operations at Ford Motor Credit and Sheppard Pratt, broadening her experience in finance and operations before joining KeraLink.

She holds a B.S. in Accounting and an M.S. in Finance from Notre Dame of Maryland University.

Outside of Work

Outside of work, Shelby loves exploring new places, collecting passport stamps, and turning every trip into an adventure.

As Director of Development at KeraLink International, Erin Crotty Peshoff brings warmth, expertise, and a strategic mindset to overseeing all fundraising initiatives. With 25 years of experience, she blends a passion for analytics with a talent for nurturing staff and creating roadmaps that consistently exceed revenue goals.

Erin’s leadership spans national consulting firms and multiple organizations where she has served as a lead fundraiser. An enthusiastic thought leader, she enjoys sharing insights on AI and data-driven fundraising.

A proud graduate of Marquette University (BA) and the College of William and Mary (MEd), Erin also holds a Certificate in Applied Positive Psychology. She lives in Leesburg, Virginia with her blended family of five.

Drawn to KeraLink’s innovative approach to preventing blindness worldwide, Erin was inspired by the organization’s multi-pronged strategies and seasoned leadership.

Fun fact: On a road trip, Erin is jamming to Stephen Wilson Jr.

Outside of Work

Outside of work, Erin has found her home in Leesburg, Virginia, where she savors the local music and wine offerings. Her personal life is as rich and full as her professional career, with her coaching certification and role as an ‘organizational maven’ adding yet more depth to her profile.

Mark Clark is the Director of Eyewear at KeraLink, where he leads the launch of an e-commerce eyewear line to financially support the organization’s mission. With over 23 years of experience in the eyecare industry, Mark leverages his expertise to maximize both the impact and profitability of KeraLink’s direct-to-consumer eyewear initiative.

Passionate about global access to eyecare, Mark is dedicated to eliminating eye health deserts in the U.S. and abroad. He was drawn to KeraLink by the opportunity to combine his two greatest passions—eyecare and serving underserved communities—into meaningful, mission-driven work.

Mark holds an MBA in Healthcare Administration and a DBA in Organizational Leadership.

Fun fact: On a road trip, Mark is jamming to 80s Top 40 and 90s pop hits.

Outside of Work

Outside of work I enjoy rescuing wild mustangs, and raising Nigerian Dwarf goats. A good weekend for me is any weekend doing chores and projects around the farm.

Aaron Chang is the Director of Product Development at KeraLink, where he focuses on the discovery, development, and deployment of technologies that prevent, early detect, and provide novel treatments for corneal diseases. With over 10 years of experience in medtech hardware and software, he has worked across seed to acquired Series C startups and consulted for major multinational medical device manufacturers.

Aaron was drawn to KeraLink by his personal mission to raise global standards in healthcare, education, and human rights. Witnessing the disparity in access to prompt, sight-saving corneal care—where even a pet in the U.S. can receive treatment in a day—motivated him to contribute to solutions for people in low- and middle-income countries.

He holds a BS in Biomedical Engineering, an MSE in Bioengineering Innovation and Design, and a Global Executive MBA from Duke University’s Fuqua School of Business.

Fun fact: On a road trip, Aaron is jamming to lo-fi covers, NF, and Michael Bublé.

Outside of Work

Outside of work, Aaron cheers on Duke basketball and captures the world through his camera lens.

Aaron Chang is the Director of Product Development at KeraLink, where he focuses on the discovery, development, and deployment of technologies that prevent, early detect, and provide novel treatments for corneal diseases. With over 10 years of experience in medtech hardware and software, he has worked across seed to acquired Series C startups and consulted for major multinational medical device manufacturers.

Aaron was drawn to KeraLink by his personal mission to raise global standards in healthcare, education, and human rights. Witnessing the disparity in access to prompt, sight-saving corneal care—where even a pet in the U.S. can receive treatment in a day—motivated him to contribute to solutions for people in low- and middle-income countries.

He holds a BS in Biomedical Engineering, an MSE in Bioengineering Innovation and Design, and a Global Executive MBA from Duke University’s Fuqua School of Business.

Fun fact: On a road trip, Aaron is jamming to lo-fi covers, NF, and Michael Bublé.

Outside of Work

Outside of work, Aaron cheers on Duke basketball and captures the world through his camera lens.

Jeff Soulliere is the Director of Strategic Partnerships and Initiatives at KeraLink International, where he leads high-impact programs to combat corneal blindness in underserved communities. With over a decade of experience in global health, strategy, and partnerships, he drives innovative, data-informed collaborations that strengthen local health systems and advance vision equity.

Jeff previously held senior roles at OneSight EssilorLuxottica Foundation, building global procurement frameworks and expanding access to care. Recognized as an Eye Health Hero by IAPB, he excels in cross-sector leadership, program design, and scaling sustainable solutions.

He was drawn to KeraLink by the opportunity to combine his passion for strategic partnerships with meaningful impact in eye health. After more than a decade in vision care, Jeff wanted to join an organization willing to challenge the status quo and invest in bold, scalable solutions for the world’s most vulnerable.

Jeff holds a B.B.A. in Marketing from Saginaw Valley State University and is an Eye Health Hero – Innovation Category.

Fun fact: On a road trip, Jeff’s playlist spans late ’90s rap, alternative rock, pop, country, and now plenty of Disney classics and cartoon theme songs—dad life is in full effect.

Outside of Work

Outside of work, nothing brings me more joy than spending time with my girls—my wife Ashley and our two daughters, Reagan and Riley. Whether we’re out exploring trails in the Jeep, off-roading through Michigan’s backroads, or just enjoying the outdoors together, those are the moments that make me feel most alive. Family is everything to me, and getting to share adventures with them—big or small—is what keeps me grounded and grateful every day.

Chelsea Andrews serves as the Programs & Partnerships Manager at KeraLink International, where she collaborates with direct-service providers around the world to document impact and drive program growth. With a background in nonprofit leadership, civic engagement, and international partnerships across Israel, Palestine, and the U.S., she brings a collaborative, equity-centered approach to her work.

A passionate advocate for the prevention of violence against women and community-led solutions, Chelsea plays a vital role in advancing KeraLink’s mission to scale innovative eye health initiatives across low- and middle-income countries.

Chelsea was drawn to KeraLink by a personal connection: her maternal grandparents were both blind. Growing up, she respected blind culture—the resilience, challenges, and community—but her grandmother’s blindness was preventable, a reality that continues to inspire her work.

Fun fact: On a road trip, Chelsea is jamming to Taylor Swift. #TTPD

Outside of Work

Outside of work, I love working on a crafty project, often around my home or repainting a room. I’m also a huge fan of intergroup work which merges differing viewpoints.

Hollie Oney is the Marketing Associate at KeraLink, where she brings creativity and passion to communication, marketing, and graphic design. She enjoys connecting with people through innovative campaigns that share KeraLink’s mission and impact with a wider audience.

Hollie was drawn to KeraLink by the opportunity to use her skills to make a tangible difference in global eye health and to help bring sustainable solutions to communities in need.

She holds a BS in Corporate Communication with a focus in Marketing from the University of Texas at Austin.

Fun fact: On a road trip, Hollie is jamming to Noah Kahan and worship music.

Outside of Work

Outside of work, Hollie loves discovering new coffee shops and capturing life’s little moments through her camera lens.

Carolyn is a Development Associate at KeraLink, supporting the team in creating a future where no individual is denied the right to sight. She brings experience from her previous roles with Clean Water Action and the National Council for Adoption, where she honed her skills in prospect management, donor database maintenance, and creating compelling development materials.

Carolyn is passionate about connecting people to the causes they care about to drive meaningful change. She was drawn to KeraLink by the organization’s mission to end preventable corneal blindness and ensure that sight is accessible to all, regardless of where they were born.

A proud alumna of Columbia University, Carolyn graduated cum laude with a BA in History. During her time on campus, she was active with the Columbia Turkish Students Association and Phi Theta Kappa Honor Society, and could often be found cheering on Columbia’s hockey team.

Fun fact: On a road trip, Carolyn’s playlist mixes nostalgic favorites from the ’70s and ’80s with ’90s and 2000s country—and every trip must include some ABBA.

Outside of Work

Outside of work, Carolyn is a Florida native who feels most at home near the water, soaking up the sunshine and spending quality time with friends and family rooting for the Tampa Bay Bucs & the Lighting!

Aaron Chang is the Director of Product Development at KeraLink, where he focuses on the discovery, development, and deployment of technologies that prevent, early detect, and provide novel treatments for corneal diseases. With over 10 years of experience in medtech hardware and software, he has worked across seed to acquired Series C startups and consulted for major multinational medical device manufacturers.

Aaron was drawn to KeraLink by his personal mission to raise global standards in healthcare, education, and human rights. Witnessing the disparity in access to prompt, sight-saving corneal care—where even a pet in the U.S. can receive treatment in a day—motivated him to contribute to solutions for people in low- and middle-income countries.

He holds a BS in Biomedical Engineering, an MSE in Bioengineering Innovation and Design, and a Global Executive MBA from Duke University’s Fuqua School of Business.

Fun fact: On a road trip, Aaron is jamming to lo-fi covers, NF, and Michael Bublé.

Outside of Work

Outside of work, Aaron cheers on Duke basketball and captures the world through his camera lens.

Allie Sibole is the Principal Engineer at KeraLink, where she designs, builds, and evaluates new technologies to prevent and treat corneal blindness. With ten years of experience in the medical device field, she has developed innovative products for Medtronic, Johnson & Johnson, and PATH, including minimally invasive surgical devices, orthopedic implants, vaccine carriers, and newborn vital signs monitors.

Allie is passionate about making health technologies—and STEM careers—accessible to all. She was drawn to KeraLink by the organization’s focus on innovation in cornea care and a technology team with a proven track record of implementing successful healthcare solutions worldwide.

She holds an MSE in Bioengineering Innovation and Design from Johns Hopkins University and a BS in Bioengineering from Santa Clara University.

Fun fact: On a road trip, if her toddler is in the car, Allie is jamming to Disney hits and endless renditions of The Wheels on the Bus; otherwise, her playlist mixes rock and pop hits from the 2010s.

Outside of Work

Outside of work, I enjoy running, reading, baking, trivia, and exploring the outdoors with my family.

Donna Smith is the Executive Assistant at KeraLink, bringing over 30 years of experience in nonprofit executive and administrative support. She has been with KeraLink for 24 years, starting in 2001 as a secretary and certified Office Administrator. Donna is also a Notary Public in the state of Maryland.

She has dedicated more than two decades to KeraLink because she believes deeply in the mission to eliminate preventable blindness.

Education & Certifications: Business School graduate | Notary Public

Fun fact: In the summer, Donna can be found by the ocean with her grandson Zion, jamming to Heather Hedley and Ledisi.

Outside of Work

Outside of work, I love talking to people about our Creator, exploring nature and being by the ocean in the summertime.