The Benefits of Blindness

by | 1 Dec 2025 | BUSINESS, HUMANITARIAN, INSPIRATIONAL, SCIENCE, SENSES, VISUAL IMPAIRMENT | 0 comments

Benefits of Blindness. Hein Wagner Vision blog image.

While keynote speaking is my primary focus nowadays, the plight of persons with visual impairment follows me wherever my travels may take me. I suppose it’s an unavoidable subject – given my own blindness underlies most of my talks. Educating others on the challenges one faces without the luxury of sight, as well as discrimination and inaccessibility in the workplace and social environments is therefore par for the course.

That said, the story of blindness isn’t one that’s reserved to the dark and gloomy. It’s important to shift gears now and then and highlight the resilience and skills of the visually impaired.

11 Unusual Advantages of Visual Impairment

Since the UN recognises 3 December as World Disability Day – it’s apt to offer you a brief snapshot of the unique advantages of blindness, and how vision is not all about sight. While there are certainly far more topics I could cover, I’ve curated and cut this down to a list of the 10 most unusual or significant advantages of visual impairment.

A necessary disclaimer before we jump in:

While these are truly remarkable facts, findings and phenomena, it should be noted that not all visually impaired persons may manifest or benefit from these traits or advantages. It goes without saying that readers should not misinterpret or misrepresent information contained herein as a showcase of purported blind privilege.

NOTE: THE INFORMATION CONTAINED IN THIS ARTICLE WAS ACCURATE AT THE TIME OF PUBLICATION. SINCE THE TOPICS RELATE TO UNUSUAL RESEARCH FINDINGS, THEY MAY CONFLICT WITH OTHER RESEARCH. PLEASE REFER TO OUR REFERENCES AT THE END OF THIS ARTICLE FOR MORE INFORMATION.

1. Intelligence and Adaptability

Early blindness increases alteration in neuronal functionality in the body by more than 25% of the cortex – and these changes extend across and between metabolism, behavioural control, resilience to stress, cardiovascular functionality and neuroplasticity. The changes observed are not merely extensive in their respective regions, but also for mechanism of action and cross-modal sensitivity.

What does this mean? Well, it indicates that our bodies have the capacity to reorganise cortical functions and repurpose areas generally reserved for specific sensory processing even in lieu of those senses functioning in a normal capacity.

Scientists are not exactly sure how the visual cortex is reappropriated by blind people, but two theories presented:

  1. “Severe unimodal sensory deprivation” (Burton, 2013) is a catalyst for accelerated cross-modal neuroplasticity. These hypotheses were supported by fMRI studies.
  2. The modalities for non-visual processing exist in all people but remain dormant in sighted individuals due to the complexity and energy consumption required for visual processing.

Burton et al. performed extensive research with the use of MRI scans and found that the visual cortex of blind individuals were activated both during auditory cues as well as Braille reading tasks – therefore responsive to auditory as well as sensory (touch) input. More fascinating is that the brains of early blind subjects showed extensive bilateral distribution of responses spanning brain hemispheres and indicate a far higher incidence of ambidexterity.

Why is whole-brain thinking significant?

There is consensus among the scientific community that people who use both brain hemispheres simultaneously demonstrate greater intelligence, better cognitive functioning, and assertive decision-making than those who merely harness one hemisphere.

  • Midline crossing: In a study of blind and sighted children handling 3D objects, blind children demonstrated a dramatically higher incidence of ambidextrous behaviour when handling objects
  • Auditory processing: Sound processing is multimodal in that it relies predominantly on the left hemisphere for language parsing, and the right hemisphere for non-verbal sound such as music and environmental cues. Blind individuals automatically employ both hemispheres to process information.
  • Adaptive Problem-solving: Since blind people both reappropriate their visual cortex and rely on other sensory input to process information, they have the capacity for employing different areas of the brain as well as the potential to incorporate various simultaneous approaches to problem-solving in a given scenario.

This bilateral hemisphere employment was demonstrative in numerous other research studies that add to the veracity of the findings, as well as their various catalysts and implications:

  • Bilateral brain employment allows for different objectives to problem-solving to incorporate both creative and structured logic.
  • Research shows that blind people have far higher activity in their contralateral occipital cortex when hearing sounds. This Auditory-evoked Contralateral Occipital Positivity is used to interpret visual and spatial information and allows for faster and more accurate orientation and decision-making in the visually impaired. (Feng et al., 2014)
  • Voss and Zatorre (2011) found that blind individuals have a significant occipital cortical thickness due to neuroanatomical changes that drastically improve pitch and musical tasks.

2. Manual Dexterity is Better when Blind

This may seem like an odd statement given that the visually impaired aren’t necessarily well known for their tattooing or bowling skills, but there’s sufficient evidence for this claim. Much of this relates to the points above relevant to whole-brain thinking. Since the different hemispheres of the brain manage opposing physiological motor function, employing both hemispheres at once allows for a more consistent and equal functioning of both sides of the body.

This was confirmed by research which indicates that the visually impaired demonstrate ‘superior tactile spatial acuity’ (Van Boven et al., 2000). Other research found that blind children demonstrated dramatically higher incidences of ambidextrous activities – with far lower preference for one hand over the other. This dexterity is reinforced through Braille reading which, unlike writing, requires sensory input and output with far greater accuracy than producing language via writing.

There’s additional proof that although the visually impaired may suffer significant deficits in certain areas with age – they demonstrate far greater grip strength and fine motor function than their sighted peers (even into their 80s), provided they remain active. This is attributed to their lifelong use of assistive devices (such as canes), an enhanced vigilance for spatial control (such as keeping arms outstretched or muscles tense to anticipate falling or bumping into things), as well as the persistent use of magnifiers, assistive technologies (devices) and Braille which require advanced tactile input and mobility.

3. The Ultimate Listeners

A 2014 study compared the differences in language learning and voice identity priming between sighted and congenitally blind individuals. The study measured the feedback from participants as well as fMRI data and the results were quite remarkable.

Blind individuals learnt to identify voices much faster than sighted individuals, with half of the blind group requiring just one session while all sighted individuals required more than one session:

  • 1 training session: 50% of blind group | 0% of sighted group
  • 2 training sessions: 42% of blind group | 58% of sighted group
  • 3 training sessions: 8% of blind group | 42% of sighted group

The participants were also given the task of recognising pseudowords to measure language learning capabilities. 92% of the blind individuals could identify at least 85% of the pseudowords compared to just 8% of the sighted group.

The MRI scans during voice identification revealed that the right anterior fusiform gyrus (rAFG) lights up in the brains of blind individuals, but not for sighted individuals. Conversely, the right posterior STS (rPSTS) region of the brain lights up for the same task in sighted individuals but not for those who are blind.

What makes this so interesting is that the rAFG region of the brain is associated with facial identification while the rPSTS region is associated with analysing others’ intentions. This indicates that the brains of blind people form adaptations for functions that are generally reserved for processing visual information and that they employ this to far greater effect than sighted individuals for voice recognition.

4. The Best Bird-watchers

Alright, so we took a few liberties with the truth here. As you can imagine, bird watching is not really a popular activity in our community (just like we’re not famed for our prowess in Le Mans), but there is theoretical value to this statement.

Since blind people can’t rely on sight for navigation (or to a lesser extent for partially sighted individuals), they develop advanced hearing skills for navigating their environments, namely binaural sound localisation. 

Studies show that blind people outperform sighted individuals in suppressing misleading sound reflections (sound-source localisation) as well as ‘unsuppressing’ those reflections (echolocation). They also do this at a far greater pace than sighted individuals. This ‘spatial hearing’ allows blind listeners to identify the location of sounds as well as their horizontal and vertical positions in space.

Another interesting finding in a 2016 study showed that this capacity for spatial hearing declines with age in sighted individuals, but interestingly it doesn’t taper off for blind individuals. This suggests that blindness counteracts natural age-related temporal processing decline. Since bird watching is not merely about ‘watching’, but about localisation and identification as well, blind people are more likely to identify the source of birdsong as well as the bird species using hearing alone.

(We do advise against prompting your visually impaired friends and colleagues to become bird-watchers, as this tongue-in-cheek entry may not be well received).

5. There’s Nothing to Fear but Sight Itself

We must apologise to FDR for distorting his famous quote but, you see – blind people really don’t suffer from social anxiety and fear the same way as sighted people. And this has been properly proven.

However counterintuitive this may sound, several studies have shown that the visually impaired experience lower levels of social anxiety, fear responses, and stress hormones in circulation than their ‘visual peers’. There are a few factors at play but the most pivotal of these is Homo sapiens’ reliance on visual input to trigger fight-or-flight responses.

The human fight/flight/freeze/fawn response is an evolutionary adaptation which allows rapid action in dangerous situations by cutting off ruminating brain functions and diverting bloodflow to areas of the body that can and will achieve either of those 4 F’s in an instance*. But although this is essential for survival, we’re also prone to experiencing these reactions in contexts where they’re not required, which can lead to an unnecessary dumping of stress hormones. And, unfortunately, by the time this has been activated we generally can’t reason our way out of it since our ‘reptilian brains’ have already vetoed our logical cognition.

While both vision and hearing are used to trigger this response (as well as our other senses to a lesser extent), vision is by far the most active player. In fact, neurons in the primary visual cortex (V1) demonstrate enhanced capacity for fear-conditioned stimuli detection – at 20-40 milliseconds, compared to 50-120 milliseconds for auditory fear processing. Our brains also use far more visual input to make decisions than we do for sound (with up to 50% of the brain’s processing power reserved for the visual cortex).

And while it is true that the brains of blind people repurpose the visual cortex and other regions for certain tasks, the mechanisms of action aren’t quite the same. Moreover, threat detection in sighted persons, without secondary impairment is amplified since they experience multi-modal sensory input. This results in dramatic reactions to stimuli which may not be harmful at all yet still create physiological responses via the vagus nerve: increased heart rate, rapid breathing, as well as ‘a hollow feel in the stomach’, since digestion is immediately shortcircuited to relay all energy to the limbs for escaping ‘a perilous situation’.

*Modern research indicates that the 4F’s of Fear aren’t mutually exclusive or decisive actions, but linear and sequential responses which occur in rapid succession (with great variability in the duration of each action). But that’s a topic for another article.

6. No Need for a Chill Pill

hein wagner vision, blind man, fascinating facts about blindness

Research shows that approximately 80% of human communication is non-verbal. That’s obviously not a great statistic for the visually impaired, but there’s an unusual advantage to this – lower anxiety.

While it may sound counterintuitive, humans are geared to reading others’ emotions and intentions through vision. This is also linked to the fight-or-flight response, since we use this information to identify possible threats. But it has a secondary function through mirror neurons – which we use to both understand another person’s emotional state and empathise with them (often leading to literal mirroring of others’ gestures). This mirroring is crucial for social integration and belonging – also crucial for long-term survival.

The downside of this is that vision is far more likely to create social anxiety and long term self-esteem issues around personal appearance in sighted individuals.

A 2022 study published in the Function and Disability Journal showed that sighted individuals are nearly 23% more likely to experience social anxiety than the visually impaired (with the full spectrum of visual impairment accounted for).

And, despite visually impaired persons having a far higher likelihood of social isolation beyond their control, they are 24% less likely demonstrate avoidant behaviours than sighted individuals.

In a nutshell, they are less socially anxious and more willing to continue engaging despite feelings of inadequacy.

7. Masters of Self-Confidence

While the visually impaired demonstrate higher tendencies for depression in general – this is primarily due to the challenges of their disabilities. It’s only human to compare our lives to others and lament the hand we’d been dealt.

And yet – although people with disabilities have legitimate reasons to complain, it seems they have less things to compare themselves with and to as well. You see, while people across abilities feel downtrodden when comparing their lives to others, sighted individuals have the added burden of having to witness these disparities.

The scientific evidence is quite alarming in this case: visual perception is linked to nearly all disorders that relate to bodily perception (such as body dysmorphic disorder). BDD is linked to abnormal visual processing and pattering biases. So, quite simply – people who can’t see are unlikely to present with such a disorder. And while there are other disorders such as anorexia and bulimia nervosa which does present among the visually impaired (though at far lower rates) – this is linked to chemical imbalances and acute stress in blind people without the comorbidity of BDD (though there are exceptions, of course). These disorders are often linked to obsessive compulsive disorder as well – which also represents in the visually impaired, but as with BDD it is far more common in sighted individuals.

It seems there’s a great advantage to not seeing what other people look like, and also an advantage to not seeing yourself.

8. Paving the way for AI Development

Scientists and Developers have long struggled to solve the problem for how artificial intelligence and robotics can be enhanced to mimic human intelligence more accurately. One problem that seems to present time and again is the complexity in interpreting natural images.

Research by de Sousa et al. (2020) indicates that a solution to this problem can be found in the sensory experiences of blind people. Since the goal of AI is to “achieve autonomous operation in natural environments”, shifting a focus to multiple sensory inputs. The researchers put forth that the ‘blind spot’ (mind the pun) in AI development is that developers seem to associate human intelligence almost exclusively with visual interpretation. This approach overlooks the fact that many people as well as animals operate without sight through adaptive sensory and motor competencies across numerous environments.

9. Niche Forensic and Psychological Expertise

Behavioural science focuses a whole lot on non-verbal communication such as posture, facial expressions, eye tracking, breathing, self-soothing behaviours and the like, and for good reason. Visual information constitutes 65-80% of all communication. This means that we’re constantly taking in other people’s gestures and body language to determine their emotional states, process their behaviour with empathy, and determine any deceit or aggression which may impact us.

And yet, this hyperfocus on visual cues often neglects verbal and auditory cues which can provide invaluable insights into emotional states. Although the visually impaired cannot replace behavioural experts who specialise in body language and other visual cues – they are crucial for teams who want a competitive advantage.

Since blind people don’t have the same luxury of working with visual cues, they learn to focus intently on auditory input from an early age to understand human emotion. Studies have found that persons who are blind from an early age don’t necessarily have an inherent skill in identifying valence of emotional vocalisations but that blind persons do seem to develop a compensatory mechanism over time. In short – they develop a unique skill for recognising emotions as a survival mechanism to ensure their own protection and social integration. This skill can be applied in niche forensic and psychogical settings to evaluate and analyse user behaviour.

10. Spelunking & Caving Buddies

The visually impaired are unlikely to partake in risky activities like spelunking or cave exploration, for the same reason that we don’t really hold any records in Le Mans. Yet, in the very bizarre and unlikely scenario where you find yourself lost in an intricate cave system, your blind buddy will most probably be far better at finding you than your sighted friends. And they may even be better at helping you find your way out as well.

There are two factors at play here: binaural sound location cues, and hyperbaric pressure sensitivity.

The mechanisms of action aren’t well understood as yet but there are several studies that explain different factors at play.

Unusual pressure sensitivity around the eyes

While this is not necessarily applicable to individuals who have suffered extensive muscle atrophy around the eyes, most visually impaired persons still experience pressure differentials either in their facial muscles, the eye itself, or the supporting structures of the eye. Although these differences aren’t necessarily something sighted individuals would pick up on, loss of vision frees up some processing power in the brain to pick up on what the eye actually ‘feels’ like. It’s an unusual thought for those who can see, since there is less sensory input to process, the brains of the visually impaired are more adept at feeling actual pressure differentials, since their minds aren’t fixated on processing the visual information

Temporary visual and auditory disturbances

Whether spelunking or diving, most every person will experience some amount of hyperbaric pressure changes the deeper the descend and the more ‘restricted’ the cavern or cave. These disturbances affect all individuals but it has a greater impact on sighted individuals in that these pressure differences may emulate actual blindness in the short term and create myopia, pain, headaches, disorientation, nausea and the like. Though visually impaired individuals may experience the same sensory impact, they don’t require the use of their eyes and (depending on the degree/type of visual impairment), their short term discomfort may be far less acute.

Silt is a hazard

When it comes to cave diving, silt is one of the most dangerous things a diver can encounter. Cave divers have a range of tricks and safety measures to ensure that they can make their way back to the surface. These include guidelines, sufficient oxygen supply, waterproof ‘maps’, depth markers and, most importantly: diving lights.

It’s highly unlikely that any visually impaired person will ever make it into the annals of history for cave exploration. But should a blind cave diver of equal proficiency as a sighted diver hypothetically find themselves in a precarious spot having to wade their way through silt, they would probably do so with greater ease. This comes down to two things:

  1. While physical exercise generally requires more energy expenditure for blind people on land (for balance and orientation), they won’t experience the same anxiety and disorientation due to silt disturbance as sighted persons and they will feel far less disoriented by the sudden lack of vision. Neither diving lights nor silt will have an impact on their spatial awareness. In fact, silt will most probably create greater spatial awareness due to variations in pressure and movement which most sighted individuals aren’t attuned to.
  2. Blind individuals consume higher levels of oxygen when participating in physically taxing activities on land. This is attributed to shorter stride length, more pronounced impact (weighted steps), and enhanced environmental attunement to maintain balance and spatial awareness. Since the visually impaired are already accustomed to this mental and physical exertion, they are more adept at navigating in the dark than sighted individuals – who will experience a drastic increase in oxygen consumption, cortisol and adrenalin release, and physical strain to orient themselves in the dark.

Air pockets!

Visually impaired persons not only have a higher acuity for sound and pressure as noted above, but they demonstrate a far higher awareness of physiological pressure changes (skin and touch).

MRI imaging scans have revealed that individuals with profound ocular blindness repurpose their visual cortex for other tasks – most prominently kinesthetic and somatosensory processing. And their brains show increased connectivity between temporal and inferior frontal regions of the brain. These changes not only indicate higher functionality in hearing, but also in touch, memory, language and executive functionality.

These functions are of critical importance in emergencies since:

  • The freeze > fight > flight > fawn responses override executive functions and logical deduction.
  • Memory is crucial for navigation and blind people are far more aware of their environments than sighted individuals.
  • Sensory interpretation of ‘touch’ (or pressure changes) are required to navigate in the dark – especially in caves and under water.
Person standing inside a cave with their back to the viewer. Hein Wagner vision logo top left.

11. Keeping Things Real (quite literally)

Research published in the Journal of Visual Impairment and Blindness by Rosel et al. presented some interesting findings around difference in verbalism between sighted and blind children. These results may surprise you.

When children were asked to define 28 words around objects, animals, movements (verbs) and facial expression there was no significant difference between groups relevant to the semantic fields. But, the blind children were able to provide better responses around movement verbs than sighted children.

The research further indicated that children who are blind use language in a univocal manner with no contradictions in their definitions compared to sighted children. The researchers hypothesised that since blind children don’t formulate language around their own experiences like sighted children and rely heavily on syntax to learn proper usage and meaning of words, they are more geared towards eloquence (whic is a pro for tech and management roles). Blind children seem far more focused on offering accurate verbalisms and realistic answers than sighted children. This tendency allows them to use language more precise, much as many non-native language speakers demonstrate better grammar and spelling skills than native speakers.

Blind children may initially struggle more to describe their world and use language accurately, but since they rely on fewer senses to express and interpret the world they swiftly learn to encode and decode language to operate within an invisible world. This skill is considered both a psychosocial and physiological adaptation. Psychosocially: visually impaired persons suffer greater isolation and ridicule, so producing and interpreting language accurately is essential for social inclusion. Physiologically: since they don’t have vision to rely on, accurate linguistic parsing conserves energy and clarity of thought also reduces auditory overload which can result from confusing or conflicting information.

In other words, blind people are more adept at providing accurate literal information with greater syntactic and semantic stability.

Research note: This article was researched and produced by Adelheid Manefeldt for exclusive use by the Hein Wagner site as summarised excerpts for a body of work around User Experience design, Accessibility for the Visually Impaired, Neurolinguistics, and Multimodal Communication. Copyright persists with the author and site owner and may not be altered, misrepresented, repurposed, or used without linking to the original source with apt citation. If you have any queries on this article and its content, kindly mail us on info@heinwagner.com

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