Pulling a white line from the eye is mostly caused by intraocular secretions, which can be seen in bacterial conjunctivitis, viral conjunctivitis, allergic conjunctivitis and other diseases. 1. Bacterial conjunctivitis: Bacterial conjunctivitis is a purulent inflammatory disease of the conjunctiva caused by bacterial infection, patients can appear red, increased secretions, foreign body sensation, photophobia, tearing and eyelid edema and other symptoms, if the secretions are more viscous, there can be the symptom of pulling a white line from the eye. 2. Viral conjunctivitis: viral conjunctivitis is an eye disease caused by viral infections, patients may have conjunctival congestion, edema, eye discomfort, photophobia, tearing, increased eye secretions and other symptoms, these secretions are condensed into a filament, there will be the symptom of pulling a white line out of the eye. 3. Allergic conjunctivitis: Allergic conjunctivitis is a kind of conjunctival inflammation caused by the stimulation of external allergens, and the patient may have symptoms such as itching, foreign body sensation, and increased conjunctival secretion, which may also have the symptom of pulling a white line out of the eye. It is recommended that patients who have a white line coming out of the eye with other discomforts should consult a doctor promptly for evaluation of their condition and treatment under the guidance of a doctor.