Diffuse lamellar keratitis

It is corneal inflammation that arises between the corneal flap and the corneal bed after lasik surgery in the early post operative period.It can range from mild with no or little symptoms in which it will regress spontaneously, to severe inflammation with corneal haziness,eye pain and blurred vision in which it needs aggressive treatments with topical steroid and antibiotics with flap lifting and irrigation of the interface with steroid and antibiotics.

The causes of DLK are inflammatory cells, bacterial toxins, eyelid secretions and other debris that get access to the area between the flap and stromal bed causing inflammation.

Without treatment, this complication can cause corneal scar. Sometimes despite these treatments, it leaves small corneal opacities that can affect your vision.

To prevent this complication from occur, patient should be treated from blepharitis and during surgery,the eye lashes should be away from the cornea. There should be good and sterile irrigation of the cornea before flap is created and after flap is created. It will be important to prevent of debris accumulation on the flap or corneal bed and also after laser ablation it will be better to irrigate the corneal bed to clean this area from dead cells and debris.

Sometimes when severe lamellar keratitis did not respond to steroid eye drops, the surgeon may lift the corneal flap and irrigate underneath it with sterile fluid, steroid and antibiotics to remove any inflammatory cells and debris.