a. What colour light is used to excite fluorescein during fluorescein angiography? b. What is the colour of the light emitted by the excited fluorescein during fluorescein angiography? c. What is the diagnosis of the fluorescein angiogram shown above? d. What optic disc abnormality may mimic this condition?
b. What is the colour of the light emitted by the excited fluorescein during fluorescein angiography?
c. What is the diagnosis of the fluorescein angiogram shown above?
d. What optic disc abnormality may mimic this condition?
Answer a The wavelengths used to excite the fluorescein molecules are blue, peak between 465 and 490 nm, and are generated by placing a special filter in front of the illumination strobe lamp. Answer b The excited molecules produce yellow-green fluorescent light, the wavelength of which peaks between 520 and 530 nm. Answer c Right central serous retinopathy. The fluorescein angiography shows the typical smoke stake appearance. Answer d Optic disc pit can give rise to serous macular detachment which can mimic central serous retinopathy.
Answer a The wavelengths used to excite the fluorescein molecules are blue, peak between 465 and 490 nm, and are generated by placing a special filter in front of the illumination strobe lamp.
Answer b The excited molecules produce yellow-green fluorescent light, the wavelength of which peaks between 520 and 530 nm.
Answer c Right central serous retinopathy. The fluorescein angiography shows the typical smoke stake appearance.
Answer d Optic disc pit can give rise to serous macular detachment which can mimic central serous retinopathy.
