Monday, May 21, 2007

SCANS - II
O P T I C A L . C O H E R E N C E . T O M O G R A P H Y
PROVIDES ANOTHER WAY OF "LOOKING" AT THE RETINA. THE STRATUS OCT SENDS BEAMS OF LIGHT INTO OUR PATIENTS' EYES AND THEN READS THE REFLECTIONS SENT BACK FROM THE DIFFERENT LAYERS OF THE RETINA. IT THEN INTERPRETS THOSE REFLECTIONS AND CREATES A VIRTUAL CROSS-SECTION OF THE RETINA. BELOW ARE TWO SCANS OF THE SAME EYE. THE FIRST IS A HORIZONTAL SCAN OF THE MACULA AND THE SECOND IS A VERTICAL SCAN. BOTH SCANS SHOW A 'PUCKERING' OF THE MACULA DUE TO CELLOPHANE RETINOPAHTY. WE WOULD NOT BE ABLE TO TELL THE TRUE EXTENT OF THIS CONDITION WITH A TYPICAL FUNDUS PHOTO.

HORTIZONAL

VERTICAL
WE TYPICALLY PERFORM SCANS OF EITHER THE MACULA OR THE NERVE FIBER LAYER AROUND THE OPTIC DISC. I HOPE TO SHOW OTHER PATHOLOGIES I AM SEEING WITH THE OCT SCANS IN FUTURE POSTS.

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