Christopher Lee / Getty Images for NBC News Exactly one year after losing his sight in Afghanistan, Navy Lt. Brad Snyder earned a gold medal in the 400-meter freestyle at the 2012 Paralympic Games in London.

For one final, terrifying moment, Navy Lt. Brad Snyder could see.

In fact, the last thing he ever viewed — one year ago today — was his two intact arms and his two attached legs. After stepping on a hidden bomb in an Afghan farm field then feeling the raw heat of the blast burn his face and hurl him backward, Snyder’s first instinct was to look down and inventory his body parts.

“That gave me positive reassurance everything was going to be OK. Shortly after that, my vision went away. I thought maybe blood or dirt had dripped down over my eyes,” said Snyder, 28, a former bomb defuser. “And then it was black, just black, the same way I see now. It didn’t occur to me until the fifth day in the hospital that I wasn’t going to see again.”

Today in London, with that dark anniversary in mind, Snyder dived blindly into a pool and sprinted away with gold – earning his third medal (two golds and one silver) at the 2012 Paralympics. At the close of the 400-meter freestyle final, Snyder cruised into the wall nearly six seconds ahead of the runner up, Spain's Enhamed Enhamed, who took silver.

"It's not a poor anniversary and I'm really looking forward to celebrating how far myself and my family have been able to come over the past year," Snyder said from the Olympic Aquatics Centre pool deck. "It's a special night for all of us, (including friends and family who cheered from the stands). We are going to look at this evening as a celebration. A celebration of conquest if you like. We are all happy to be together, being in London and enjoying the experience."

Snyder finished the race in four minutes, 32.41 seconds, a personal best. But it was a larger span of time — 365 days — that truly occupied his thoughts and fueled the best race of his life.

He swam for victory: “Yes, I’m really competitive.”

He swam for inspiration: “The idea that there shouldn’t be anything in the way of barriers presented to you that slow you down. Yeah, (stuff) happens. But I hope this shows the value of attitude, of making a decision to not look back. I made that decision. From that point, it was all just about figuring it out and moving forward.”

And he swam for love: “My support network really came to bat for me when I was down. My mom, my brothers and sister were at my side. My Navy friends demonstrated their commitment to me. So I feel an obligation to reciprocate that commitment, to show them I appreciate the love. I want to prove to them — and myself — that I can experience success on a level I experienced before, even though I am now blind.

“Competing (today) was the pinnacle of that.”

Lt. Brad Snyder, blinded by an IED explosion in Afghanistan, is now training for the London 2012 Paralympics.

His mother, Valarie, witnessed her son's golden swim while sitting with her other two sons, her daughter, and Valarie’s sister — the same group that surrounded Snyder’s hospital bed near Washington, D.C. when a doctor told him no surgery could restore his shattered eyes. In fact, those eyes later were surgically removed and replaced with prosthetics.

When she watched her son compete — as he once did for the Naval Academy swim team — Valarie knew she would be “weeping,” she said, while she measured the massive ground Brad already has gained in 12 months. But she also reflected on how this journey began for her: with a horrifying phone call last Sept. 7.

At 5:30 a.m., the ringing phone read “unknown number” on its screen — the same message that showed up each time Brad called home from his base in Afghanistan. But he typically called her at 11 a.m.

“At that time, it could only mean one thing,” Valarie Snyder said. “I didn’t want to answer it.”

She did, though. And her son’s commanding officer revealed to her that an explosion had hit Brad in the face, that he still had all of his extremities and that he was then in surgery. Not long after she was reunited with her wounded son at a stateside military hospital, he reassured her that his life would continue without sight. And what the woman saw today in the London pool only reinforced that sunny outlook, she said.

“He keeps saying he’s got to show me it’s not a disability, that he’s going to be fine,” she said. “He’s telling me that I don’t have to worry about him anymore.”

"He truly was swimming for (his family and friends)," said his swimming coach, Brian Loeffler. "He recognizes how much suffering they went through when he was injured.”

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It was Loeffler who realized — while first perusing the Paralympic swimming schedule — that Snyder would be competing in his best event one year to the day after losing his vision.

“It immediately became a goal of mine to do everything I could to help Brad win a medal on that day,” Loeffler said. “I initially only told his mother of the schedule. (But) I could not keep it from Brad so I told him a week after I told his mother because I wanted him to focus in on that special day as well.”

Snyder, ironically, visualizes each of his swims beforehand, using the mental images he has concocted for the pool, the lane lines and the crowd. The tactic allows him to feel that every race is already familiar.

Slideshow: Blinded warrior has visions of gold Lt. Brad Snyder lost his sight in an IED explosion in Afghanistan last year. The Navy officer will once again represent the U.S., this time at the London 2012 Paralympics in September. Launch slideshow

Prior to today's race, he saw himself walking across the pool deck toward the block, standing above his assigned lane as his name was announced, then feeling the surge of competitive juices rise inside. A gold medal is what he glimpsed in his mind. And if only for four furious minutes, his new life as a blind man faded as a constant reality.

“From the moment I step up on that starting block, I just want to beat everybody in the pool,” Snyder said. “But once I hit the (finishing) pad, once the race was over, it all went back to just being an amazing experience.”

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