What Do Blind People Dream About?
The short answer: whether blind people see in their dreams depends almost entirely on when they lost sight. People who became blind in adulthood typically continue to have visual dreams for decades. People who were born blind or lost sight before about age five do not report visual imagery in their dreams - their dream worlds are built from sound, touch, smell, taste, and emotion. Between ages five and seven, results are mixed.
That basic finding has held up across multiple studies since the 1990s, but the picture is more interesting than that summary suggests. Recent brain-imaging work shows the visual cortex of congenitally blind people does still activate during REM sleep - just without producing visual content. Congenitally blind people also report nightmares much more frequently than sighted people. And blind dreamers can absolutely become lucid in their dreams, often with sharper sensory awareness than their sighted counterparts. This article walks through the science from the original 1999 Hartford study to the most recent neuroimaging work.
Can The Blind See in Dreams?
In 1999, dream researchers at the University of Hartford analyzed 372 dreams of 15 blind people. They found that both the congenitally blind and those who went blind before five years old did not have any visual dreams at all.
That's because our dreams are made up of real world experiences and our innermost thoughts, anxieties and desires. So for someone who has never perceived images or light (or can't remember any) their dreams simply can't manifest visually.
People who go blind after seven years of age do report visual dreams in the same way we perceive them. It seems the longer you experience the world with sight, the longer you will go on dreaming visually. Someone who goes blind in their senior years can experience vivid dreams for many years after losing their sight.
Of the people who went blind between five and seven years the results were mixed; some went on to have visual dreams and some did not. However, regardless of the visual dream content, all groups reported rich and imaginative dreams, suggesting visual imagery is no measure of dream intensity on its own.
More recent work has filled in the picture. Bertolo and colleagues at the University of Lisbon (2003) ran EEG recordings on congenitally blind subjects during REM sleep and found something unexpected: the visual cortex showed activation patterns very similar to those of sighted dreamers, even though the participants reported no visual imagery whatsoever. The brain’s visual machinery was running. It just wasn’t producing pictures.
A 2023 review in Brain Sciences brought the literature up to date and added an important nuance: when congenitally blind people are asked to describe their dreams, they reliably report tactile, auditory, and emotional content rather than visual imagery. But their brains are doing something during REM that closely parallels what sighted dreamers’ brains do. Whether that activity counts as “dreaming visually” is partly a question of what we mean by the word “visual.” The phenomenology is non-visual; the underlying neural state may not be.
Sensory Compensation
So, what do blind people dream about if there is no visual imagery involved? As a sighted person it's hard to imagine. But we can say that blind people's dreams are representative of their real lives, charged with sound, touch, smell and emotion.
Because they lack the sense of sight, their brains automatically compensate by putting more emphasis on the remaining sensory data. They can build up a highly detailed perception of the world (especially with advanced development of the senses such as echolocation) and these senses create a vivid dream world.
In one study of dreams, 60% of blind people reported dreaming about transport (compared to 28% of sighted people) which is understandably a big cause of anxiety for blind people because of the danger it presents.
The Mystery of The Missing REM
Research has also shown that blind people who never dream visually show very little or no Rapid Eye Movement during the REM phase of sleep. They are still capable of having vivid sensory dreams, but they don't show any eye movements.
This highlights an interesting function of REM: our eyes dart all about the place because they're scanning a visual dream world. The fact that it's missing in the dreams of blind people suggest there is little or no other reason for REM.
Do Colorblind People Dream in Color?
What does this mean for colorblind people - do they dream in color?
As you might expect by now, your waking experience dictates your perception of dreams. So someone who has a red-green color vision defect since birth (affecting a surprising 8% of males with Northern European ancestry) will dream in the same colorblind mode.
If you were born with full color vision but later became colorblind, you may have full color dreams if you have sufficient intact long term memories of them.
What's more, people who became blind later in life report that familiar faces become blurry - and never age - in dreams.
Black and White Dreams
Do you dream in color? For sighted people, this seems like a pretty odd question. If you see in full color during the day, then you dream in color at night, right?
Curiously, in 2008, researchers at the University of Dundee surveyed generations of people who grew up with black-and-white television (which emerged throughout the entire first half of the twentieth century).
Even though they saw in full color in everyday life, they still recalled dreaming in black and white. By the 1960s, when color TV became more widespread, people reported fewer black-and-white dreams and shifted back to full color.
Incidentally, if you can't recall any colors from last night's dream, this doesn't mean it was in black and white. It just means you don't recall that particular detail. Increasing your dream recall and practicing lucid dreaming will improve this.
Can Blind People Lucid Dream?
Yes, I believe so. Blind people can have a highly attuned sense of self awareness, just like sighted people. In fact, they are more accustomed to using what we consider "back-up" senses as primary senses, meaning they can be more aware of their environment. This could enhance your ability to notice whether you're dreaming and become lucid. I wonder, what would those lucid dreams be like?
For anyone curious about getting started, the foundation skills are the same regardless of sight: dream recall, daily self-awareness, and reality checks adapted to non-visual cues (touch-based reality checks like trying to push your finger through your palm work just as well without sight). The full beginner’s pathway is laid out in our complete guide to lucid dreaming techniques.
Do Blind People Have Nightmares?
More than sighted people do, actually. A 2014 Danish study by Meaidi and colleagues compared dream content in congenitally blind, late-blind, and sighted participants and found that congenitally blind people reported nightmares about four times more often than sighted people did. The most common nightmare themes for the congenitally blind group were getting lost, traffic accidents, and falling - all situations where the absence of sight is genuinely dangerous in waking life.
The interpretation researchers favoured: nightmares are partly a rehearsal mechanism for real-life threats. People navigate the world based on the senses they have, and the situations that feel most threatening during the day reappear during REM sleep. Sighted people typically don’t lie awake worrying about traffic the way someone navigating it without sight reasonably might. Sensory experience shapes both the content of dreams and the threats those dreams rehearse.
How Do Blind People Know When They Wake Up?
By body sensation, not visual cue. Sighted people often use the moment of opening their eyes and seeing the bedroom as the marker of waking - but that’s a learned association, not the actual mechanism. The brain transitions out of REM the same way for everyone: through changes in muscle tone, breathing rhythm, and conscious awareness. People who are blind report the transition through awareness of their body in bed, the temperature of the sheets, ambient sounds, and the return of conscious thought. Many blind people report knowing they’re awake before they’ve done anything else - the same way sighted people often know they’re awake even before they open their eyes. Vision turns out to be a confirmation of waking, not the cause of it.
Frequently Asked Questions
Do blind people see in their dreams?
It depends on when they lost their sight. People who became blind after about age seven typically continue to have visual dreams for many years, sometimes decades. People who were born blind or lost sight before age five report no visual imagery in their dreams - their dream worlds are built from sound, touch, smell, taste, and emotion. The five-to-seven age range is mixed.
What do blind people dream about?
Their dreams are vivid and detailed, just constructed from non-visual sensory data. Common content includes conversations, music, ambient sounds, tactile sensations (textures, weather, contact with people), smells and tastes, emotional states, and the spatial-awareness perception that blind people develop through echolocation, mobility training, and daily experience. Themes also reflect waking concerns - one study found 60% of blind participants reported dreams involving transport, compared to 28% of sighted participants, reflecting how navigation challenges in waking life carry into dreams.
How do blind people know when they wake up?
Through body awareness, ambient sound, and the return of conscious thought - the same internal transitions sighted people experience but without using visual cues as the marker. The brain’s shift out of REM sleep happens identically regardless of sight; it’s only the post-waking confirmation that differs.
Can people who were born blind have visual dreams?
They do not report visual imagery in their dreams. However, recent neuroimaging work shows that the visual cortex of congenitally blind people does activate during REM sleep - the brain’s visual processing machinery is engaged, just without producing pictures. Whether this activity counts as “visual dreaming” is partly definitional. The subjective experience is non-visual; the underlying neural state may not be.
Do blind people have nightmares?
Yes, more often than sighted people. A 2014 Danish study found that congenitally blind people report nightmares about four times more frequently than sighted people. The most common nightmare themes - getting lost, traffic accidents, falling - reflect real-life navigation risks, supporting the theory that nightmares partly serve as a rehearsal mechanism for waking threats.
Can blind people lucid dream?
Absolutely. The foundation skills of lucid dreaming - dream recall, self-awareness, reality checks - work just as well without sight. Touch-based reality checks (trying to push a finger through a palm) and auditory cues are particularly effective for blind practitioners. Some researchers and practitioners argue that blind lucid dreamers may actually have an advantage in dream recall and self-awareness because they’re already practised at non-visual sensory attention.
About The Author
Rebecca Casale is a lucid dreamer and a science writer with a special interest in biology and the brain. She is the founder of World of Lucid Dreaming and Science Me.
