Have you ever wondered: why are we closing our eyes when smelling something intensely beautiful, nostalgic, or unusual? Whether it’s the earthy scent after rain, the comforting aroma of freshly baked bread, or a striking perfume, it’s instinctive to pause and shut out the world around us.
We close our eyes not only to deepen our awareness of the smell, but also to allow the brain to shift focus and enhance other senses like taste, hearing, and even emotion.
In this article, we’ll explore the science behind this sensory reflex and how it relates to eye health, vision, the olfactory system, and our emotional and psychological wellbeing.
A Natural Reflex: Tuning In With Closed Eyes
One reason we close our eyes while smelling something is to reduce visual stimulus. Our brains are constantly managing input from the ears, nose, skin, and especially the eyes. When we temporarily block visual input by closing our eyes, it minimises distraction and reallocates our brain’s attention to more subtle signals—like an emerging scent or hidden odour.
This act is a bit like dimming the lights to hear soft music better. With less visual noise, the brain becomes more attuned to the finer details of smell—especially pleasant odours, layered fragrances, or even a strong smell.
The Role of the Brain and the Olfactory System
Smelling isn’t just about the nose; it’s a full-brain experience. Scent travels straight to the olfactory bulb, which connects directly to the olfactory nerve, a pathway deeply embedded in the limbic system—the part of the brain responsible for emotion, memory, and instinct.
When our eyes are closed, neural energy that would be used to process images via the optic nerve is redistributed, enhancing smell. It’s one of the few senses that bypasses the brain’s usual processing hubs, making it profoundly emotional and uniquely immersive.
In addition, the nasal cavity and nasal passages work in tandem with our sinuses to carry scent molecules up to odor receptors, which translate them into recognisable sensations. Closing the eyes allows more energy to be focused on this intricate olfactory process.
Smell, Vision and Sensory Balance
While the connection between smell and sight might not seem obvious, these senses influence one another more than we realise. Studies suggest that reducing vision input can improve sense acuity—helping us to notice more detailed notes in a smell.
However, it’s also worth exploring how the eyes themselves respond during scent perception.
Vision and Eye Health
When focusing intently, we often blink less, which can lead to dry eyes, eye strain, and even temporary blurry vision. Over time, this behaviour—especially in environments with bright light or screens—can contribute to dry eye syndrome or more serious vision issues. Closing your eyes even briefly can offer relief to the eye muscles and help rehydrate the surface of the eye with tears, especially if supported by artificial tears or eye drops.
Persistent eye problems should always be discussed with an eye doctor, who may recommend an eye exam to assess the condition of your vision and rule out any underlying issues like dark spots, eye irritation, or other symptoms.
Mindfulness and the Power of Focus
Closing our eyes while smelling can also deepen our emotional response. Without visual context, the brain dives more deeply into sensory interpretation. This intensifies the sensation, making the smell feel more immersive and layered.
This is especially important in moments of reflection, intimacy, or sleep—times when we seek calm and presence. Inhaling a soothing scent, with closed eyes, can help calm the nervous system and promote a restful state.
Eye Movements and Multisensory Overload
Even subtle eye movements while trying to concentrate can disrupt mental processing. That’s because your eyes are wired for movement—to scan, track, and interpret. But this constant scanning taxes the brain, leaving less room for olfactory detail.
Think of how difficult it is to appreciate a complex aroma while walking through a crowd, battling noise, movement, and toxic chemicals in the air. It’s far easier to appreciate a beautiful odour in stillness—with closed eyes.
Everyday Applications: Why It Matters
Here are a few common scenarios where you might instinctively shut your eyes to enhance your sense of smell and reduce vision problems:
During Meals
To fully savour flavour and taste, closing the eyes can help distinguish spices, herbs, and layered notes in food and drink.
In Nature
Walking through fields or gardens, many instinctively shut their eyes to take in the pollen-filled air and ambient natural aromas.
When Unwell
Blocked nasal passages or inflamed sinuses reduce your ability to smell clearly. Closing your eyes can help focus on what subtle scents remain. A nasal spray may assist, but stillness can amplify the moment.
In Emotional Moments
A familiar scent might recall a memory or person. Closing your eyes lets you fully experience that connection without external interference.
A Thoughtfully Designed Ritual for Deeper Scent Appreciation
To fully embrace the power of scent with all its emotional and sensory depth, the environment around you matters. The Ideal Perfume Experience by Pairfum is designed to complement the natural instinct of closing your eyes when smelling—helping to reduce distraction, heighten awareness, and create space for stillness. By guiding you through a mindful approach to fragrance, it enhances not just the smell, but the entire sensory journey, allowing your olfactory bulb, memory, and emotion to work in harmony.
Fragrance Library Perfume Experience Box – By Pairfum London
This experience includes a curated selection of materials—a beautiful blotter strip, a natural cotton cloth, and a handcrafted perfume vial—each chosen to enhance the purity and clarity of the fragrance. With guidance on how to prepare your surroundings, slow your breathing, and limit visual stimulus, it encourages a deeper engagement with the scent itself. Whether you’re exploring a new perfume or reconnecting with a familiar aroma, every element is designed to remove distractions and support your natural sensory instincts, helping you notice even the most delicate nuances in the fragrance.
Conclusion
The next time you notice yourself closing your eyes when smelling something—whether it’s a cup of coffee, the odour of rain-soaked earth, or a nostalgic perfume—remember that your body is doing something beautifully intelligent.
You’re not just smelling. You’re tuning out the world. You’re focusing your mind. You’re letting your olfactory nerve and odor receptors guide your attention inward, where memory and meaning reside.
This small act is a gateway to presence, reflection, and deeper connection—with scent, with emotion, and with yourself.
