Traumatic retinal detachment.

Ocular contusion may result in numerous types of retinal breaks, including horseshoe tears, operculated holes, large irregular retinal breaks, macular holes, and, most often, retinal dialyses. Supranasal dialyses have a high correlation with trauma and may require months before symptoms appear. Large irregular breaks occur only following trauma and may be found in the area of contusion. Horseshoe-shaped tears and operculated holes may occur at areas of vitreoretinal attachment. Macular holes may also occur from trauma, either from detachment of vitreous or as a sequela of retinal edema. Careful examination of the posterior pole and retinal periphery is necessary when there is a history of trauma or findings indicative of a past episode of trauma. Binocular assessment of the retina is a prerequisite to conducting an appropriate examination.