EASTON, Pennsylvania — A visitor attending Mass at St. Jane Frances de Chantal Church might not notice anything unusual about the celebrant.

Father Bernard J. Ezaki walks the center aisle of the massive church in Easton. He climbs the steps leading to the altar like any other priest or liturgical minister. He recites prayers with the normal vigor and rhythm of a cleric. People might notice Ezaki doesn’t use the Sacramentary to read the prayers, or that Ezaki holds a micro-cassette in his left hand, and that technology contains all the Mass prayers and readings.

He also distributes holy Communion to the faithful just like any other priest, though he has one rule: Be still. “I need a big landing field,” he said. “I tell them, especially at funerals, ‘I don’t want to put my fingers in your mouth.'”

If you haven’t caught on by now, here is what you need to know about Ezaki: He is legally blind; he has been that way since birth. “I’m grateful,” the 60-year-old priest said during an interview in his office, where decorations include a statuette of Stuart, the short, one-eyed minion from the “Despicable Me” movies. “If I could see well, I’d be in trouble. I might not even be a priest today.”

Next year, Ezaki will celebrate the 30th anniversary of his ordination as a priest in the Diocese of Allentown, which encompasses five counties in eastern Pennsylvania. Spokesman Matt Kerr, who has served the diocese since 2000, said Ezaki is the only blind priest in the diocese as far as he knows.

“It’s possible there were others, men who became blind as they aged,” Kerr said. “But I can’t say one way or the other.”

A 1991 article in the Allentown Morning Call newspaper cites another spokesman saying Ezaki was the first blind priest to be ordained in the diocese. According to an article by Independent Catholic News, an online news outlet in the United Kingdom, church law before 1983 forbade the ordination of blind candidates and those with other physical impairments.

Ezaki’s blindness resulted from being given too much oxygen following his premature birth. That led to “retinopathy of prematurity,” a blinding eye disorder that can affect premature infants and lead to lifelong vision impairment and blindness.

The lack of vision has never slowed him down. The idea of a religious vocation first entered Ezaki’s mind as a child. He told his parents, the late Dr. Toshio and Mary Ezaki, he wanted to become a priest because he thought they worked only on Sundays. In high school and college, he says, he began seriously considering the priesthood.

Ezaki attended Allentown public schools and earned bachelor’s and master’s degrees, including a master’s in theological studies from Harvard Divinity School in Cambridge, Massachusetts. He studied for the priesthood at St. Charles Borromeo Seminary near Philadelphia. As a student, Ezaki used recorded textbooks, He took careful notes and always found people willing to read to him.

Ezaki said he learned how to record the prayers and readings from another priest who became blind after being ordained. He said he records the liturgy with a magnifying glass and tape recorder.

“You know when you read a lot, your eyes are always a little ahead of your mouth?” he asked. “My ear is always ahead of my mouth.”

A wire from the tape cassette runs under his chasuble, with an earpiece in his left ear enabling him to listen to the words. “If I want to stop it to tell a joke, I just stop it,” he said.

Ezaki began his first year as an assistant pastor. He then taught theology to sophomores at Bethlehem Catholic High School in Bethlehem, Pennsylvania, until 2013, when then-Allentown Bishop John O. Barres, now bishop of the Diocese of Rockville Centre in New York, asked him how long he had been teaching.

“I said 24 years,” Ezaki recalled. “He said, ’24 years!’ That’s the most emotion I’ve ever seen out of that guy. I knew right then I was out of there.”

He came to St. Jane’s in October after serving as an assistant pastor at the Cathedral of St. Catharine of Siena in Allentown. Despite his blindness and other setbacks, Ezaki never shows bitterness, according to those who know him.

He is known, however, for sprinkling humor into his homilies, writings or every day conversations, with much of it self-deprecating. He sometimes editorializes, too.

At the end of Mass July 2, Ezaki mentioned the pride swelling from St. Jane’s parishioners with the news that a native of their parish, Bishop-designate Alfred A. Schlert, was named June 27 by Pope Francis to become the diocese’s fifth bishop, succeeding Barres.

“We priests are very enthusiastic,” Ezaki said. “The good thing is that he knows us, and we know him and The bad thing is we know him and he knows us.” That elicited first laughter, then applause, from the congregation. Ezaki proclaimed, “Let’s belt this one out,” as the organist played “America the Beautiful,” the recessional hymn for the Sunday before the Independence Day holiday.

Ezaki also works on a blog called Apology Analogy, www.apologyanalogy.com. His writings use visual imageries — analogies — in defense of the Catholic faith. He is not afraid to express his Catholicism either in his writings or his preaching.

“They say one of the most common human fears is talking in front of people,” he said. “Not me. The bigger the crowds, the better. But I have my phobias about other things.”