Objective: To describe a case of inflammatory pigment epithelial detachment (PED) presumed to be secondary to the amoeba Blastocystis hominis. Methods: This is an interventional case report. Results: A 46-year-old male complained of visual distortion in the left eye for 7 months. Examination revealed the presence of a subretinal cystic lesion on the fovea. Optical coherence tomography demonstrated a PED with a hyperreflective lesion over the detached retinal pigment epithelium (RPE). Work-up included a fecalysis, which revealed the presence of Blastocystis hominis. The patient was treated with oral metronidazole. RPE detachment resolved after treatment with no recurrence in 30 months of follow-up. Conclusion Intestinal parasitic infection may be associated with retinal disease and should be included in the differential diagnosis of PED when OCT reveals a hyperreflective lesion.
Blastocystis hominis

Objective: To report the efficacy and safety of intravitreal pegaptanib sodium (IVP) on macular edema (ME) due to branch retinal-vein occlusion (BRVO) among patients intolerant to intravitreal triamcinolone acetonide (IVTA). Methods: Four eyes with ME due to BRVO were included in this interventional case series. The main outcome measures were best-corrected visual acuity (BCVA), central macular thickness (CMT), intraocular pressure (IOP), and adverse effects. Results: There was a significant decrease in mean CMT from 524.50 ± 141.12 to 293.75 ± 130.75 microns (p = 0.009) after IVP injection. BCVA improved in all 4 eyes after IVP. Mean IOP after IVP was 13.60 ± 3.21. No ocular or systemic complications were observed. Conclusion IVP appears to be safe and effective in decreasing retinal thickness and improving VA in eyes with ME due to BRVO. IVP is a potential treatment for eyes that are intolerant to IVTA.
Macular Edema