corneal_abrasion
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | |||
| corneal_abrasion [2026/07/31 07:05] – [corneal abrasions] gary1 | corneal_abrasion [2026/07/31 07:42] (current) – [assessment] gary1 | ||
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| Line 37: | Line 37: | ||
| * evert upper eyelid to exclude FB | * evert upper eyelid to exclude FB | ||
| * use slit lamp with cobalt blue light and fluorescein stain to document position and size | * use slit lamp with cobalt blue light and fluorescein stain to document position and size | ||
| + | * **see [[eye_exam]]** | ||
| * consider performing **Seidel test to exclude laceration**: | * consider performing **Seidel test to exclude laceration**: | ||
| * application of flourescein drops near a laceration results in loss of the green pigment streaming away from site of laceration due to dilution from aqueous humor (do not use the strips near lacerations) | * application of flourescein drops near a laceration results in loss of the green pigment streaming away from site of laceration due to dilution from aqueous humor (do not use the strips near lacerations) | ||
| Line 42: | Line 43: | ||
| - | <note warning> | ||
| - | ***a [[Woodslamp]] should NOT be used for corneal flouroscein staining eye examinations as:** | ||
| - | * 365nm is the wrong spectrum for fluorescein - you need cobalt-blue light (~450–490 nm) viewed through a yellow filter | ||
| - | * 365nm thus gives much lower sensitivity for detecting corneal pathology (only ~50%)(([[https:// | ||
| - | * 365nm gives UV-A radiation to the sensitive eye - indeed in normal use of a Wood's lamp, the patient should close their eyes if near the face | ||
| - | </ | ||
| - | |||
| - | <note tip> | ||
| - | ***options for cobalt-blue light for flouroscein examinations** | ||
| - | * **the cobalt-blue setting on a slit lamp** | ||
| - | * rotate the knob - don't use the "red free light" which is a lever setting | ||
| - | * **Eidolon Bluminator Blue version** | ||
| - | * compact hand held LED device with a 7.5x magnifier built-in (28 diopter) | ||
| - | * powered by a non-removable ultrasonically welded silver oxide battery said to last 3-5 yrs | ||
| - | * **Eidolon Bluminator Darkfield version** | ||
| - | * Blue LED with Yellow Filter Lens for better contrast | ||
| - | ***cobalt blue penlights** | ||
| - | </ | ||
| =====management===== | =====management===== | ||
| * **if suspect infection, laceration or AC reaction, contact ophthalmology** | * **if suspect infection, laceration or AC reaction, contact ophthalmology** | ||
corneal_abrasion.txt · Last modified: 2026/07/31 07:42 by gary1