Behind the blur: Understanding interface fluid syndrome in post-LASIK patients.

Background: Refractive surgeries such as LASIK have markedly improved the correction of refractive errors and are widely performed globally. Despite their benefits, the long-term sequelae of these procedures, particularly postoperative complications like interface fluid syndrome (IFS), are not fully understood due to the relatively recent adoption and continuous evolution of these techniques. Accurate diagnosis and management of such complications are crucial to prevent irreversible vision loss.

Purpose: This video is designed to enhance the understanding and clinical skills of ophthalmologists regarding IFS, highlighting its potential as a rare but sight-threatening condition following myopic LASIK surgery. It aims to raise awareness about the nuances of diagnosing and managing IFS effectively.

Synopsis: The featured video narrates the case of a post-LASIK patient who presents with defective vision attributed to IFS. It elaborates on the diagnostic journey, including the challenges encountered with conventional intraocular pressure (IOP) measurement tools and the critical role of advanced imaging techniques. The video further discusses treatment adjustments, such as the discontinuation of steroids and the administration of antiglaucoma medications, which markedly improved the patient's condition.

Highlights: • Discusses the differential diagnosis between IFS and diffuse lamellar keratitis (DLK). • Emphasizes the limitations of traditional IOP measurement tools post-LASIK and the need for alternative methods. • Outlines key clinical indicators of IFS, including increased central corneal thickness and peripheral corneal edema. • Recommends specific diagnostic techniques and management strategies to prevent long-term visual impairment.

Video link: https://youtu.be/jOfgE6n_5T8.