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A 51-year-old man with photopsias
Digital Journal of Ophthalmology 2008
Volume 14, Number 8
April 4, 2008
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Saqib Ali Khan Utman | Furness General Hospital, Barrow In Furness, UK Benjamin J. R. Moate | Furness General Hospital, Barrow, UK
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| Diagnosis and Discussion | Bilateral retinal dialysis is a rare finding. Unilateral nasal and superior dialyses are often caused by trauma.(1) Bilateral retinal dialysis without trauma suggests a developmental anomaly at the ora serrata, and there is no known inheritance pattern. In our patient, his general appearance and no previous trauma suggests that he has a bilateral, congenital retinal dialysis.
Retinal dialysis is probably secondary to a developmental abnormality of the inferotemporal periphery of the retina and vitreous base and may be precipitated by trauma.(2) In some cases, an autosomal recessive mode of inheritance (3) and the possible involvement of lattice degeneration have been considered.(4)
Inferotemporal quadrant retinal dialysis occurs in young adults and is associated with demarcation lines, retinal cysts, peripheral microcystoid degeneration and yellow-white vitreous opacities. The majority of these features were seen in our patient.
Genetic factors play a role in some cases of inferotemporal dialysis, the cause of which is probably multifactorial.(5)
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