An eye examination by an eye doctor can accurately diagnose the problem. Usually this is done through a clinical examination and an optical coherence tomography (OCT) scan.

• Optical Coherence Tomography (OCT)
  OCT is similar to an ultrasound scan, except that the latter uses sound waves to capture images. OCT uses light waves instead, and can capture very detailed, cross-sectional images of the retina, which helps to diagnose and monitor cases of CSCR. OCT imaging is very fast and convenient. You will be asked to place your head on a chin rest and hold still for several seconds while the images are obtained. The light beam used is painless, and unlike X-rays, it does not involve any radiation.
  
  In certain cases, other tests such as dye-based angiography or OCT angiography (OCT-A) may be recommended by your eye doctor to assess the severity of your condition and formulate a treatment plan.
  
  

• Fundus Fluorescein Angiogram (FFA) and Indocyanine Green Angiogram (ICG)
  In this test, a fluorescent dye is injected into a vein in your arm. Over the next few minutes, photographs are taken of the blood vessels in your eye as the dye passes through. This helps to highlight areas of abnormal fluid leakage. Uncommonly, complications due to the dye injection can arise, such as nausea, or in very rare cases, severe allergic reactions or heart problems.
  
  
• Optical Coherence Tomography Angiography (OCT-A)
  In some cases, the blood vessels in the retina can be examined with OCT-A. Based on the same technology as OCT, OCT-A uses light waves to capture very detailed images of blood vessels in the eye. OCT-A does not require any fluorescent dye injection, and also does not involve any radiation.