Still feeling a foreign body sensation three days after femtosecond surgery.

It is possible to experience a foreign body sensation three days after femtosecond surgery. This may be a normal phenomenon, or it could result from eye fatigue, ocular infection, or other medical conditions, requiring symptomatic treatment based on the specific cause.

1. Normal Phenomenon

Femtosecond laser surgery is an advanced treatment for myopia that uses ultrafast laser pulses to reshape the cornea. The procedure involves creating a precise incision in the corneal stroma, altering the cornea's thickness and curvature, thereby changing the eye’s refractive state to correct nearsightedness. Experiencing a foreign body sensation three days post-surgery is generally considered normal. Since the surgery requires creating a flap on the eye's surface, during the healing process, symptoms such as tearing, light sensitivity, and the feeling of having something in the eye are common.

2. Medical Causes

1) Eye Fatigue

A persistent foreign body sensation three days after femtosecond surgery may be due to prolonged reading, or extended use of mobile phones and computers, often accompanied by symptoms of eye strain. These discomforts can be relieved through eye massage.

2) Ocular Infection

If proper postoperative care is not followed, the eye may become infected, leading to a sensation of a foreign body. Under a doctor’s guidance, medications such as tobramycin eye drops or levofloxacin eye drops can be used to alleviate symptoms.

In addition, dry eye syndrome may also be a contributing factor. After surgery, it is important to maintain good eye hygiene and avoid water exposure from washing or sweating. Ensure adequate sleep, avoid staying up late and overusing the eyes. Maintain a light diet and avoid spicy or irritating foods.