Critical Visual Symptoms You Should Never Ignore

3. Eye Pain Accompanied by Redness and Light Sensitivity Severe eye pain paired with redness and photophobia (sensitivity to light) should never be treated with a "wait and see" approach. These symptoms often point to internal inflammation, dangerously high intraocular pressure, or serious infection. For contact lens wearers, this combination is particularly concerning, as it may signal a severe corneal infection that could lead to blindness if not treated instantly. Furthermore, if the pain is coupled with blurred vision in one eye, it may indicate an acute glaucoma attack—an emergency that requires treatment within hours to save the eye.