blurred vision

What does unusual blurred vision in one eye indicate?

What does unusual blurred vision in one eye indicate?

VnExpress
Minh Anh, 32, from Ninh Binh, asks: Why is one of my eyes good, while the other is blurry, sometimes requiring me to squint to see clearly, especially when reading small print or looking far away? What disease is this a symptom of, and how is it treated?
blurred vision, night glare caused by dry eyes

blurred vision, night glare caused by dry eyes

VnExpress
Ms. Van, 42, experienced blurred vision and glare at night, along with occasional headaches, initially suspecting night blindness or vitamin deficiency; however, doctors diagnosed her with dry eyes.