Early Retinal Changes in Hunter Syndrome According to Spectral Domain Optical Coherence Tomography.

face injury. Considering the onset of corneal infiltration, the cause of corneal infiltrate in this case appears to be delayed type hypersensitivity (DTH) reaction. DTH reaction takes 2 to 3 days to develop, and foreign materials act as haptens that conjugate with proteins, the complex of which combines with T lymphocytes, leading to an inflammatory response [1,2]. A previous study showed that oxidized cooking oil enhanced DTH in mice [3]. Further experimental study is needed to reveal the maturation of dendritic cells and to determine whether the DTH is triggered after cooking oil exposure. Transient myopic changes were mostly induced from sclera-choroidal inf lammation or changes in the lens-iris diaphragm [4]. An increase in K value occurred during corneal inflammation in this case. When back-calculation was applied using the clinical history method, the change in K value was well matched with the change in refraction of the corneal plane (Fig. 1C) [5]. Corneal thermal injury may cause collagen shrinkage and induce a transient steepening in the central cornea, as in conductive keratoplasty. In conclusion, we described a rare case of delayed onset transient corneal infiltration and transient myopic shift following a cooking oil burn. Clinicians should keep in mind delayed corneal changes though no ocular abnormalities are observed immediately after thermal ocular surface injury related with cooking oil. Jong Ho Ahn, Dong Hyun Kim Department of Ophthalmology, Gachon University Gil Medical Center, Incheon, Korea E-mail (Dong Hyun Kim): [email protected]