Welch-allyn A Guide To The Use Of Diagnostic Instruments In Ey Manuel d'utilisateur télécharger pdf (Page 8)

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Common Pathologies of the Eye

PROLIFERATIVE DIABETIC RETINOPATHY

Disc: Net of new vessels growing on disc surface

Retina: Numerous hemorrhages, new vessels at superior

disc margin

Vessels: Dilated retinal veins

END STAGE DIABETIC RETINOPATHY

Disc: Partially obscured by fibrovascular proliferation

Retina: Obscured by proliferating tissue; small area of

retina with hemorrhage seen through “window” of

fibrovascular membrane

Vessels: Abnormal new vessels in fibrous tissue

Vitreous: Prominent fibrovascular tissue

ADVANCED HEMORRHAGIC

MACULAR DEGENERATION

Disc: Normal

Retina: Large macular scar with drusen; prominent

macular hemorrhage

Vessels: Normal

MACULAR DRUSEN (COLLOID BODIES)

Disc: Normal

Retina: Extensive white drusen of the retina

Vessels: Normal

INACTIVE CHORIORETINITIS (TOXOPLASMAS)

Disc: Normal

Retina: Well-circumscribed lesion with areas of hyperpigmentation

and atrophy of retina, white sclera showing through

Vessels: Normal

ADVANCED RETINITIS PIGMENTOSA

Disc: Normal

Retina: Scattered retinal pigmentation in classic bone

spicule pattern

Vessels: Greatly attenuated

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Welch-allyn A Guide To The Use Of Diagnostic Instruments In Ey Manuel d'utilisateur Page 8