Dye Examination of the Cornea

Defects in the surface of the cornea can be visualized with fluorescein or rose bengal solution (in either case, administer one drop of 1% solution). Since these dyes are not usually absorbed by the epithelium, they may be used to visualize loss of epithelium over a wide area (such as corneal erosion) and extremely fine defects (as in superficial punctate keratitis). Illumination with a cobalt blue filter enhances the fluorescent effect.

— Slit lamp examination of the cornea.

— Slit lamp examination of the cornea.

Fig. 5.2 The slit lamp (slit aperture) may be used to examine all levels of the cornea with a narrow beam of collimated light.

Fig. 5.2 The slit lamp (slit aperture) may be used to examine all levels of the cornea with a narrow beam of collimated light.

These dye methods can reveal corneal epithelial defects (corneal erosion) even without the use of a slit lamp, which is helpful in examining infants.

Was this article helpful?

0 0
Stretch Marks

Stretch Marks

Stretch Marks Prevention and Treatment. Learn What Exactly Are Stretch Marks And How Can They Be Treated. MP3 Audio included for your PC or IPod.

Get My Free Ebook and Audio


Post a comment