The association of serous macular detachment and optic disc pits is well recognized and similar findings with the morning glory disc abnormality indicate that these two conditions are variations of the same basic abnormality. Serous macular detachment may occur in 30-50% and usually in patients too young to have a posterior vitreous detachment. Spontaneous resolution is reported to occur in up to 25 %, although permanent visual loss may result if macular detachment is prolonged or recurrent. The origin of the subretinal fluid is more likely to be cerebrospinal fluid rather than vitreous, although the evidence is not conclusive. The combination of argon laser photocoagulation with internal tamponade either with or without vitrectomy appears to offer greater chance of successful retinal reattachment. Attempts at internal drainage have suggested that there is no rhegmatogenous element and fluid is displaced by gas tamponade until it is reabsorbed and recurrence is prevented by formation of a chorioretinal adhesion at the disc margin.
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