Medical Retina: Case fourteen

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Figure 1

Figure 2

This 56 year-old woman complained of decreased left visual acuity. She was on chemotherapy for breast carcinoma. Her right and left fundi are shown in figure 1 and 2 respectively.

a. What do the pictures show?

b. What is the cause of  her decreased vision?

c. Apart from metastases, in what way can the vision be affected by malignancy?