There are clear symptoms including:
- Blurred vision.
- Reading problem.
- Inability to see close objects.
- Eye irritation or weakness in the eyes.
- In children, there are initial signs such as crossed eyes (when eyes are not aligned properly), continuous blinking of the eyes, rubbing of the eyes, and frowning while reading.
- Advanced signs include, headaches due to stress on vascular eye muscle, squinting of eyes, eye fatigues, different sensation, or excessive itchiness in your eyes.