Description

Leishman developed a classification system for identifying groups of patients with hypertensive retinopathy. This stresses the fact that arteriosclerosis may occur as part of the natural aging process and affects how the arterioles respond to hypertension.


Arterioles

Arteriovenous Crossing

Retina

Group

straight and narrow

no changes

age changes in fundus

1 (involutional sclerosis)

segments near disc dilated; distal segments narrow

may be present

age changes in fundus

2 (involutional sclerosis with hypertension)

major arterioles dilated, others narrow

present

age changes in fundus

3 (advanced involutional sclerosis with hypertension)

normal

no changes

normal fundus

4 (normal fundus of youth)

diffuse constriction

may be present

normal fundus

5 (early hypertension n youthful vessels)

diffuse constriction

veins hidden at crossing

papilledema and retinal edema; retinal hemorrhages

6 (fulminating hypertension)

changes of groups 2 and 5

may be present

 

7 (severe hypertension with relative sclerosis)

 

where:

• In arteriosclerosis the vessels show enhanced light reflection, focal attenuation and irregular caliber.

• Groups 1 to 3 seem to refer to the older patient with arteriosclerosis, while 4 to 6 apply mostly to the patient with hypertension without arteriosclerosis.

 


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