OM t of c.iii - Vision Research Coordinating Center - Washington ...

2/22/96 Chapter 10 Fluorescein Photodocumentation page 10-1
10.1 Introduction
Chapter 10
Photodocumentation of Fluorescein Pattern
Fluorescein photography allows for objective verification of the habitual rigid
contact lens fit for rigid contact lens wearing patients enrolled in the CLEK Study. At
least one person at each Participating Clinic is trained and certified to perform
fluorescein photography. Fluorescein photography is performed at all Study Visits and
when directed by the CLEK Photography Reading Center or the Coordinating Center
for rephotography as per the CLEK Photography Reading Center Operations Manual.
10.2 Fluorescein Photography Technique
The CLEK Photography Reading Center Coordinator provides, as needed, rolls
of Kodak Ektachrome 100 ASA film to each CLEK Participating Clinic. It is advised that
the film be placed in a cool, dry location.
The Clinic Photographer loads the film into the camera, and the Photographer
turns on the Nikon FS-2 slit lamp and the Nikon FS-2 flash power source (or other
photographic system used for certification).
The Clinic Photographer adheres to the following fluorescein photography
protocol:
(1) Clean the slit lamp biomicroscope chin and head rests.
(2) Verify that the flash intensity is set at 5.
(3) Verify that the beam splitter is in.
(4) Verify that the magnification is set at 16X.
(5) Verify the background illuminator is off.
(6) Verify that the aperture is wide open.
(7) Verify that the cobalt filter is in place.
(8) Place the Wratten 12 or Tiffen 2 yellow filter in front of the slit lamp’s
objective lenses.
(9) Assure the patient’s comfort and position in the slit lamp camera.