Question

uses of red free green filter​

Answer 1

Answer:

Typically, a cobalt blue filter demonstrates best the nerve fiber layers. The green filter—often called red-free filter—offers good contrast between the retinal layers, retinal vessels, and optic nerve head. The red filter allows documentation of the choroid and its vessels, usually seen as white vessels.

Answer 2

Answer:

refer to the attachment

Explanation:

Typically, a cobalt blue filter demonstrates best the nerve fiber layers. The green filter—often called red-free filter—offers good contrast between the retinal layers, retinal vessels, and optic nerve head. The red filter allows documentation of the choroid and its vessels, usually seen as white vessels.

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