A legally blind photographer has debuted a striking series of photos of his twin sons, who both struggle with autism, in an effort to raise awareness about the boys' condition.

Bruce Hall, whose work has been featured in National Geographic and in numerous exhibitions across the world, was born with an underdeveloped optic nerve, which means he can only see objects clearly when they are a few inches from his face.

Although Bruce, of Santa Ana, California, specializes in underwater photographer, his latest project focuses on his twin sons, Jack and James, and their experience with autism over the past 14 years of their lives.

Stunning: Bruce Hall, a legally blind photographer from California, debuted a striking series of photos of his twin sons, James and Jack - both are severely affected by autism and are nonverbal. Above, Jack finds comfort in the water

Laughter: Since Bruce can't communicate verbally with his sons, who are now 14, he took their photos as a way to bond with them. He is releasing the pictures in a book to raise awareness about their condition

In their book, Immersed: Our Experience With Autism, Bruce and his wife Valerie share photos of the boys throughout their lives and detail their sons' struggles with communication and social interaction.

They hope that the book will help to raise awareness for people who struggle with severe developmental disabilities - and their families.

Bruce, a retired teacher, said he began taking photos of the kids when they were toddlers in order to really see them.

'I do this to look at them... I followed them into their space, and these chance encounters opened up an entirely new perspective on my photography and this project,' he told The Mighty.

'So much of what’s gone on over the last 14 years has been so chaotic, so photography has been a way to look at them and gaze into their eyes,' the photographer added.

Family: Bruce, who is also pictured with his daughter, says he has taken 150,000 photos of his sons, Jack and James. The pictures are featured in Bruce and his wife Valerie's book, Immersed: Our Experience With Autism

Playing around: Bruce, who was born with an underdeveloped optic nerve, can only see objects close up. He uses his photography to see the boys more clearly by zooming in on the pictures

Close-up: James running in the yard, making loud sounds, blowing off steam. James is functionally nonverbal, yet he’s beginning to use a few simple words. He also uses pictures and simple sign language to express himself

Water lovers: Bruce says James, and especially Jack, find comfort and peace when they are in the water

Many of the photos in the book are underwater shots of Jack, who finds comfort and solace in the water.

'It seems like the water is the place where Jack seems the most calm and content,' he said. 'In some of the those photos, that look on his face, you don’t often see that. It’s a way for us to connect, and I want to share it with other people.'

Bruce went on to share of the project: 'As a whole, the narrative describes the journey our family took during the early years of the boys’ lives, from the time before the diagnosis to their tenth birthday.

'It honestly describes the struggles and sorrows, as well as the courage and laughter, that accompanied those most difficult years.'

He said that life was very difficult for the family before the boys were diagnosed with autism, and that he and his wife still constantly worry about their futures.

'We and many other families worry about the future for our loved ones affected by severe developmental disability,' Bruce explained. 'We're working and advocating to ensure that our sons and other can live safely and with dignity in the community.'

Silly: Jack smiles and jumps around in his bathing suit in this sweet picture

Striking: Bruce says the boys were not diagnosed with autism until age 10. Since then, things have gotten better for the family, but he and his wife still worry about their futures constantly

Beautiful: Bruce shares of the photos, 'It’s a way for us to connect, and I want to share it with other people'

Amazing: The photographer, who has started a Kickstarter in order to fund the publishing of the book, said he hopes his photos will inspire people to be kinder and more accepting of one another

'It is estimated that 25 per cent of people with ASD, Autism Spectrum Disorder, are non-speaking and cannot speak for themselves,' shared Bruce.

'People like our sons are often underrepresented in the media, and we want to give them a voice in the discussion. I want the public to think about how these people are taken care of, and that they deserve everyone’s consideration,' he said of the book.

Bruce, who started a Kickstarter in order to fund the first printing of the book, said he hopes his photos will inspire people to be kinder and more accepting of one another.