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August 1999, Vol 117, No. 8 >

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Photo Essay | August 1999

Keratitis and Retinitis Secondary to Tarantula Hair

K. Ray Shrum, MD; Dennis M. Robertson, MD; Keith H. Baratz, MD; Tom J. Casperson, MD; Jay A. Rostvold
Arch Ophthalmol. 1999;117(8):1096-1097. doi:10.1001/archopht.117.8.1096.
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AN 11-YEAR-OLD boy was referred for evaluation of tarantula hairs in his right eye. Three months previously he first noticed right eye irritation immediately after playing with his pet tarantula. He had seen 3 physicians during the 2 months before he was correctly diagnosed and treated.

Anterior segment examination revealed multiple opacities and hairs at all levels of the cornea (Figure 1). Hairs that had advanced to the endothelium were visible within mutton-fat keratitic precipitates. The anterior chamber had cells (1+). Posterior segment examination revealed several small grayish white retinal infiltrates and a snowman-shaped lesion extending from the retina into the inferior vitreous (Figure 2).
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Figure 1.

Stereoscopic photographs of stromal infiltrates and mutton-fat keratitic precipitate secondary to tarantula hairs. Use free-stereo technique by converging your eyes until a third image is seen between the 2 pictures, then relax accommodation until focused.

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Figure 2.

Stereoscopic photographs of retinal infiltrate extending along tarantula hair into vitreous (snowman-shaped lesion). Use free-stereo technique by converging your eyes until a third image is seen between the 2 pictures, then relax accommodation until focused.

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Figure 3.

Stereoscopic photographs of dorsal view of pet tarantula. Use free-stereo technique by converging your eyes until a third image is seen between the 2 pictures, then relax accommodation until focused.

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