Among the rest of the symptoms, the person may notice a mild or more serious headache. The eyes start hurting by the end of the day. That is why a person feels over exhausted and extremely sleepy. Squinting is another symptom such patient may experience. The doctor will most probably prescribe glasses or contacts to improve the situation. It is important to watch eye hygiene! On the whole, a feeling of fatigue should leave in 7 days or 14 days depending on the individual treatment and complexity. It is important to change both contacts and glasses from time to time.