The Effects of Poor Lighting

Updated February 21, 2017

Light is essential for many aspects of our lives. Sunlight provides essential vitamins and nutrients for both plants and animals. People suffering from light deprivation are likely to experience depression, bone pain, or cavities according to Man-made light makes it possible for people to function in places that would, otherwise, be dark. Poor lighting has many effects whether it is in our homes, on the streets, in cars, or in public buildings.

Eye Strain

People's eyes have to work harder when there is insufficient lighting. In areas with poor lighting, people have to squint in order to see with the same clarity that is offered by brighter light. Whether from reading a book in low light or driving a car on a poorly-lit road, eye strain can slowly worsen your eyesight. According to the Mayo Clinic, symptoms of eye strain are red, watery or itchy eyes, shoulder pain, neck pain or double vision.


Since poor light doesn't illuminate an area as well as good lighting, more objects are in shadow. Chances of not seeing obstacles increase in these conditions, thus increasing the chance of accidents; while walking people can stumble over objects, if driving their could hit unlit cars, potholes or animals on the road. In a study conducted by The Cochrane Review, researchers were able to find that street lighting can prevent road traffic crashes, injuries and fatalities.

Plant Deterioration

Plants rely on sunlight to produce their food through a process called photosynthesis. Each plant requires a specific amount of light but all plants need some light. Without sufficient light, plants cannot make food, and hence, not survive.

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About the Author

Matt Scheer began writing professionally in 2005. His work has appeared in "The Daily Texan" and "The New York Tribune." Scheer holds a B.A. in English and a B.A. in history, both from the University of Texas. He is also a certified Yoga teacher and Web designer.