The lacrimal sac at the inner canthus is located at the junction of the upper and lower eyelid edges, forming a horseshoe shape. Although the inner canthus is narrow, it contains many small structures, such as the inner canthus angle, lacrimal duct, and lacrimal sac. The connection between the orbital ligament and the lacrimal sac is very close, and the ligament is divided into anterior, posterior, and posterior, wrapping around the lacrimal sac. The eyes are the place where tears flow, and the tears can moisten the eyes. If there is a problem with the lacrimal sac, the eyes will feel very uncomfortable. When symptoms such as明显 dryness, itching, continuous tearing, or no tears occur, it is necessary to go to an ophthalmologist for a check-up in a timely manner.

Where is the position of the lacrimal sac at the inner canthus?

1. The lacrimal sac at the inner canthus is actually located at the position inside the anterior eye corner.

2. The lacrimal sac at the inner canthus is located at the position of the orbital medial prelacrimal fossa, which is a membranous blind sac.

3. The upper eyelid lacrimal sac is a blind end, higher than the inner canthus, and descends to the nasolacrimal duct.

4. The medial palpebral ligament, orbicularis muscle, and the anterior part of the eyelid show an oblique position.

How to deal with lacrimal sac lesions at the inner canthus

1. The lacrimal sac is sensitive and easily damaged, and lacrimal sac diseases are also one of the common diseases in ophthalmology.

2. Dacryocystitis is a common lacrimal sac lesion, which is a benign inflammatory lesion. It is mostly divided into acute and chronic types, among which chronic is the most common.

3. The main methods for treating dacryocystitis are medication and surgery.

4. For mild dacryocystitis, eye drops can be used for anti-inflammatory treatment. During this period, the affected area can be cleaned with saline solution.

5. If the dacryocystitis is severe, it can be treated with dacryocystorhinostomy or dacryocystectomy.