Immunobiological diagnosis of tropical ocular diseases: Toxocara, Pythium insidiosum, Pseudomonas (Burkholderia) pseudomallei, Mycobacterium chelonei and Toxoplasma gondii.

Of the sera obtained from 18 patients with ocular diseases comprising ocular larva migrans (OLM), Toxoplasma gondii, Mycobacterium chelonei, Pythium insidiosum bacteria and tumour, 3 sera were positive for Toxocara antibody at the titre over 1/1600 ELISA. All 3 of these sera came from males with unilateral grayish fundi. We demonstrated the value of the direct immunofluorescent assay (DIFA) on vitreous specimens from 7 cases of Toxoplasma retinitis.

Removal of submacular cysticercosis: a case report.

We report a case of submacular cysticercosis which was removed by pars plana vitrectomy and retinotomy with favorable result. Preoperative visual acuity was counting fingers of one foot and improved to 10/200 at five weeks postoperatively. The technique illustrates another approach to the surgical management of submacular cysticercosis.

Surgical management of giant retinal tears.

Giant retinal tear is one of the causes of complex retinal detachment which resists treatment. Various surgical techniques have been developed in the past to treat such a tear. These include pars plana vitrectomy with or without scleral buckling, use of viscoelastic agent, air, expanding gas, silicone oil, retinal tacks, retinal sutures, retinal incarceration.

Clinical observations of ocular quinine intoxication.

A case of a 13-year-old boy with ocular quinine intoxication was reported. He had been diagnosed as having cerebral malaria and had received quinine dihydrochloride for one week by intravenous drip infusion; the total dose was 12.6 g.