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Optociliary veins and central retinal vein occlusion
G Giuffrè1, C Palumbo, G Randazzo-Papa
1Istituto di Clinica Oculistica, Università di Palermo, Italy.
The British Journal of Ophthalmology
|December 1, 1993
Summary
Optociliary veins (OCVs) can develop late in central retinal vein occlusion (CRVO) cases. Their presence in CRVO patients does not appear to improve visual prognosis.
Area of Science:
- Ophthalmology
- Retinal Vascular Diseases
Background:
- Central retinal vein occlusion (CRVO) is a significant cause of vision loss.
- Optociliary veins (OCVs) are collateral vessels that can form in response to retinal venous obstruction.
Purpose of the Study:
- To investigate the incidence and timing of optociliary vein (OCV) development in patients with central retinal vein occlusion (CRVO).
- To assess the relationship between OCV presence and visual acuity in CRVO patients.
Main Methods:
- Follow-up study of 94 patients with central retinal vein occlusion (CRVO) diagnosed within the previous year.
- Ophthalmoscopic examination to detect the presence of optociliary veins (OCVs).
- Comparison of visual acuity between eyes with and without OCVs.
Main Results:
- Optociliary veins (OCVs) were detected in 7.4% of patients at initial examination.
- After more than one year of follow-up, OCVs were observed in 30.4% of eyes, indicating late development.
- No significant difference in visual acuity was found between CRVO eyes with and without OCVs.
- OCV occurrence did not differ between non-ischaemic and ischaemic forms of CRVO.
Conclusions:
- Optociliary veins (OCVs) frequently develop late in the course of central retinal vein occlusion (CRVO).
- The presence of OCVs in CRVO does not appear to be associated with a better visual prognosis.