Slit Lamp Photography

Slit Lamp Photography

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Dry eye test

Subtle punctate changes maybe missed
Subtle punctate changes maybe missed

Most significant way to help your dry eye patients 

Office diagnostic tests for dry eye diagnosis have many non conclusive tests.  Unfortunately they are only suggestive such as the Schrimer test, TBUT, tear osmolarity, but are not diagnostic. Our advanced fluorescent Diode and yellow barrier filter find subtle punctate changes.  Punctate stain is the only objective test for dry eye. It also tells the degree and severity that corresponds to patient’s complaints.  

Photos help in patient follow up 

Evidenced based dry eye treatment
Evidenced based dry eye treatment

This patient was treated for dry eyes. The left represents the original findings while the right shows the improvement a month later. Note the change in punctuate stain and the reestablishment of the tear film. 


Below is an important new development. Watch the video of the blink and tear film dynamics. Note the tear film coating, it’s spread and breakup. This is called dynamic tear film analysis.



How this works: Yellow Barrier filter 

Slide in Gel filter
Slide in Gel filter
The filter slides in and out. This permits external photos and quickly converts to yellow Wratten type filter 

Brighter and wider fluorescent diode beam 

Full field fluorescein LED exciter
Full field fluorescein LED exciter

The special fluorescein exciting LED light is designed especially for diagnosis of external ocular tear film abnormalities. Unlike the typical slit lamp 10 mm blue light it is more intense and has a greater field. It allows you to see the lid action, tear film spread and breakup like never before. 

Highly Recommended if your slit lamp does not have a yellow filter



Why this works:

The standard slit lamp blue light washes out the fluorescent green  detail.  By using a yellow barrier filter the blue color is blocked  and only the fluorescent detail is seen. The tear film and ocular surface disorders are easily seen.

 The legacy ‘tear break up time’ can be videoed for more understanding of the tear film behavior. The images can be used to show the patient and evaluated the efficacy of treatment.

The technology is ideal to evaluate different treatments. The before and after images help you decide on the type of drops, value of Restasis™️ and other meds in the category, punctal plugs, serum drops, meibomian treatments,etc 


Clifford Terry,MD