Ocular anatomy for medical students and foundation years trainees
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Irritating releasable suture after MMC augment trabeculectomy What is the most common organism to cause Glaucoma Drainage Implants associated endophthalmitis? Streptococcus species. Coagulase negative Staphylococci. B. Cereus. Mycobacteria. Glaucoma filtration surgery, 5 years ago, with releasable sutures. Presented with irritation from the irritating temporal sutures. Examination reveals chronic bleb related endophthalmitis (Stage 2 - 0.5 AC cells.) Although the surgery was MMC augmented, the bleb looks very thick and vascularized. The irritating suture came out easily, and it was not connected to deeper structures, or the nasal suture. Find out the MCQ discussion on YouTube!
Watch our YouTube channel! This gentleman with high myopia lost his eye following pars plana vitrectomy for rhegmatogenous retinal detachment. He had combined phaco, IOL & vitrectomy, with silicone oil tamponade. The image shows Ando iridectomy performed at 5 O'clock. Unfortunately, the retinal detachment repair surgery failed, and he acquired emulsified silicone oil in the anterior chamber (Note the small emulsified bubbles on the back surface of the cornea. Clinical examination of the posterior segment revealed chronic retinal detachment with proliferative vitreoretinopathy, optic atrophy and macular chorioretinal scarring, which makes silicone oil removal surgery unfeasible. Retinal detachment surgery with silicone oil tamponade has a primary success rate of 80%, with 10-20% of complex cases showing persistent detachment or redetachment under silicone oil. Final reattachment after subsequent operations is up to 95-98%. However, retinal damage contributes to poor visual ac...
Understanding Retinal Dialysis: A Critical Retinal Condition Watch on YouTube! Permanent link! Retinal dialysis is a specific type of retinal break where the retina disinserts from the ora serrata, the junction between the retina and the ciliary body. This condition often leads to rhegmatogenous retinal detachment (RRD) and is most prevalent in young adults and children, particularly following ocular trauma. Causes and Risk Factors Ocular trauma, especially blunt force like a fist or sports injury, accounts for 55% to 88% of unilateral cases, with the superonasal quadrant commonly affected. Bilateral dialyses are rarer and may stem from developmental anomalies rather than solely trauma. Unlike typical retinal tears, the retina stays attached to the vitreous base posteriorly, altering the detachment mechanism. Clinical Features Patients typically present with vision loss, floaters, or a curtain-like shadow if detachment occurs, often with a history of recent trauma. Inferotemporal...