What Causes Sunken Eyes? 12 Common Causes (You Should Know)

Sun Exposure

Overexposure to sunlight has always had adverse effects on the human body. From sunburn to skin darkening, cancer, and enophthalmos, UV rays have proven detrimental to one’s health. 

Some experts say that the dangers of UV light, whether from natural sunlight or artificial indoor rays, can also damage the eyes. Such damages extend from the surface to the cornea and lens, but many people are unaware of it. 

In addition, other common injuries caused by overexposure to the sun include blurred vision, excessive tearing, photosensitivity, blindness, and darkened under-eye areas. 

For people who already have dark circles under their eyes, UV rays can worsen the condition, causing the dark circles to appear as shadows, giving off the impression of hollowed-out eyes or enophthalmos. It isn’t surprising. After all, sun exposure causes dehydration and harms the skin—two of the causes of sunken eyes. Fortunately, UV-blocking sunglasses are now available to help protect the eyes from potentially blinding eye diseases and tumors.