Simultaneous bilateral uveal effusions after cataract extractions.
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Aged↗
Biomedical subjects
S Chern
Publications and source records attributed to S Chern.
Use of intravitreal autologous blood to identify posterior cortical vitreous in macular hole surgery.
Surgical management of macular holes involves removal of tractional prefovial vitreous cortex. Accurately identifying this adherent tissue can potentially decrease intraoperative complications. A new, effective technique using autologous whole blood can be used to identify and facilitate separation of the posterior cortical vitreous.
Blood↗
Retinopathy associated with low-dose tamoxifen.
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Female↗
Bilateral central retinal vein occlusion as an initial manifestation of pseudotumor cerebri.
Pseudotumor cerebri, or benign intracranial hypertension, is known to produce visual symptoms. Central retinal vein occlusion has been linked with pseudotumor cerebri but rarely as an initial manifestation. We describe a 46-year-old patient--who was obese and mildly hypertensive with bilateral central retinal vein occlusions--who was subsequently diagnosed as having pseudotumor cerebri. In patients with simultaneous bilateral central retinal vein occlusions, unusual underlying systemic conditions such as pseudotumor cerebri should be considered in the diagnostic evaluation.
Humans↗
Central retinal vein occlusion associated with drusen of the optic disc.
A 43-year-old man had gradual visual changes OD. Funduscopic examination revealed central retinal vein occlusion OD. Complete ocular examination revealed bilateral drusen of the optic disc, confirmed by b-scan ultrasonography. Complete systemic evaluation showed no other etiology for the central retinal vein occlusion. Over a ten-year follow-up, in the absence of systemic disease or other local ocular anomalies, we concluded that central retinal vein occlusion can arise from external compression secondary to drusen of the optic disc.
Adult↗
Posterior lens dislocation during attempted phacoemulsification.
Mechanisms of posterior lens dislocation during phacoemulsification have been suggested, but the actual mechanism involved has not been demonstrated. Chart reviews of cataract surgeries performed at Indiana University from 1991 until the present identified nine cases of posterior lens dislocation that occurred during phacoemulsification. In four, the procedure was converted early to a can-opener capsulotomy. Cadaver eye studies showed the role of an imperfect capsulorhexis in extending tears while a "trap door" was being formed for posterior nuclear dislocation during phacoemulsification.
Aged↗