Related Experiment Videos
[The relationship between corneal dellen and tearfilm breakup time]
1Eye Hospital, Sun Yat-sen University of Medical Sciences, Guangzhou, Guangdong Province.
Summary
Corneal dellen occurred in 22.54% of patients post-strabismus surgery. This condition, linked to reduced tear film stability after rectus resection, may cause corneal desiccation.
Area of Science:
- Ophthalmology
- Corneal Diseases
- Ophthalmic Surgery
Context:
- Strabismus surgery involves manipulating eye muscles.
- Postoperative complications can affect corneal health.
- Tear film stability is crucial for ocular surface integrity.
Purpose:
- To investigate the incidence and risk factors of corneal dellen after strabismus surgery.
- To analyze the relationship between tear film breakup time (BUT) and dellen formation.
- To compare dellen incidence following different surgical techniques (rectus resection vs. recession).
Summary:
- Corneal dellen developed in 22.54% of 102 eyes following strabismus operations.
- Patients who developed dellen showed a significant reduction in tear film BUT (from 23.22s to 8.61s).
- Dellen incidence was notably higher after rectus resection (47.75%) compared to rectus recession (5.13%).
Impact:
- Findings suggest conjunctival elevation post-surgery disrupts tear film, leading to desiccation and dellen.
- Highlights the increased risk of dellen after rectus resection.
- Informs surgical planning and postoperative care to mitigate corneal complications.