Tears are secreted naturally in our eyes in order to maintain the natural moisture for pain-free vision. Most tears are drained from the eyes but some excess tears are collected and transmitted via lacrimal sac into the nasal cavity.
The lacrimal sac is anatomically located at the inner corner of your eye and leads into the nasal passageways via lacrimal duct, a narrow tube that transfers the excess tears into the nasal cavity. Dacryocystitis takes place when you feel irritation and swelling in this sac, which will lead to dryness of eye with other disturbing symptoms. Dacryocystitis can also be a result of an infection.
The two types of Dacryocystitis are:-
- Acute Dacryocystitis
- Chronic Dacryocystitis
The patient may complain of decreased visual acuity owing to the excess tears and an abnormal tear composition. Examination will reveal a tender, tense, red swelling (± preseptal cellulitis in severe cases). Mucopurulent discharge can be expressed from the punctum. There may be a fever and an elevated leukocyte count too.
This may present with a history of chronic or recurring epiphora and may have persistent redness of the medial canthus. There may be a painless or recurring swelling over the lacrimal sac, and pressure over this will result in reflux of mucopurulent material through the lower punctum.