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Retinal abnormalities associated with anemia.

M L Aisen, B R Bacon, A M Goodman

Archives of Ophthalmology (Chicago, Ill. : 1960)

|July 1, 1983

Summary

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Anemia can cause retinal changes, specifically extravascular lesions in 20% of patients. Retinal venous tortuosity increases with anemia severity, indicating a direct relationship.

Area of Science:

Ophthalmology
Hematology
Medical Research

Background:

Anemia is a common condition with various systemic effects.
Retinal changes associated with anemia require further investigation.
Previous studies have suggested a link between anemia and ocular abnormalities.

Purpose of the Study:

To investigate the incidence of retinal changes in anemic patients.
To determine the relationship between anemia severity and retinal venous tortuosity.

Main Methods:

Retinal photographs were taken of 35 anemic patients and 35 controls.
Retinal lesions (vascular and extravascular) were identified and quantified.
Retinal venous length was measured using a curvometer to assess tortuosity.

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Main Results:

No retinal abnormalities were found in the control group.
Extravascular retinal lesions were observed in 7 (20%) of anemic patients.
A significant negative correlation was found between venous length and hematocrit levels, indicating increased venous tortuosity with more severe anemia.

Conclusions:

Anemia is associated with specific retinal changes, including extravascular lesions.
Retinal venous tortuosity is directly proportional to the severity of anemia.
These findings highlight the importance of ophthalmic examination in anemic patients.