Frank J. Becquet, MD, PhD (Nantes, France), Jean-Fran├žois Le Rouic, MD (Nantes, France), Didier Ducournau, MD (Nantes, France)

PURPOSE:

To describe and evaluate the prevalence of intensive sport practising among patients with earlyonset central retinal vein occlusion (CRVO).

METHODS:

Intensive sport practising was evaluated in a consecutive series of 10 patients with CRVO who were younger than 45 years of age (mean age, 37.2 years) from a total of 154 patients with CRVO. Data based on personal and familial history, sport habits, cardiovascular examination and biological analyses with coagulation check up have been retrospectively analyzed.

RESULTS:

Five patients out of ten had a normal medical check up (no arterial hypertension, no hyperlipidemia, thrombophilia or hyperhomocysteinemia). Numerous similarities have been observed for these patients: 1) existence of visual eclips linked to sporting efforts in the month prior to the decrease of visual acuity secondary to CRVO ; 2) worsening of visual acuity lossafter hemodilution for the three patients to whom it was proposed ; 3) intensive practice of sports with violent efforts (squash, tennis) in two cases or running (marathon) in three cases; 4) spontaneous disappearance of all clinical signs of CRVO with an increase of visual acuity in four cases upon stopping sport practising.

CONCLUSION:

A particular profile with intensive sport practising could be isolated in early-onset CRVOs without risk factors. The similarities found for these young patients allow us to consider a particular physiopathology for CRVO, probably linked to an intensive physical effort.