- Ophthalmia nodosa is an inflammatory reaction in and around the eyes to certain types of insect and plant hairs possessing unique characteristics, including mechanical and toxic attributes.1,2 We recommend that ophthalmologists and paediatricians be informed of the potential complications from direct contact with these insects.
- Silicone oil is widely used as a vitreous substitute in vitreoretinal surgeries.1 It is most frequently indicated in complex cases of retinal detachments and proliferative diabetic retinopathy associated with tractional retinal detachment, as well as ocular trauma to stabilize the retina and inhibit proliferative activity.1 Liquid silicone was first injected into the vitreous cavity of rabbit eyes in 1958, and then utilized for the treatment of retinal detachments in 1962 by Cibis et al.2 Several complications have been reported: including cataract formation; band keratopathy; rubeosis iridis; optic neuropathy; glaucoma; chronic uveitis; migration into the lateral ventricles of the brain; posterior ciliary artery occlusion; epiretinal membranes; and episcleral, subconjunctival, and orbital foreign body granulomas.
- Acquired cystic lesions in the eyelid can arise from a number of structures including the sweat glands (apocrine and eccrine hidrocystoma), from the pilosebaceous follicles (milia, trichilemmal cysts), from the epidermis (epidermal inclusion cysts), or from the meibomian glands (chalazia).1 Intratarsal keratinous cysts are a recently described entity that also arise from the meibomian glands and clinically may look exactly like chalazia.2–8 Their treatment, however, is different, and it is therefore important for the ophthalmologist to be aware of this entity.
- Fungal keratitis is prevalent in tropical environments, making up 35% of all keratitis cases in Florida.1 However, few cases have been reported in more temperate regions such as Canada.1–3 In this article, we present 2 Canadian farmers who experienced keratitis involving a dematiaceous fungus, Alternaria alternata, and a Fusarium species, respectively.
- A 7-year-old boy was referred by the emergency department for a corneal limbal foreign body in his right eye. The patient's parents had first noted the lesion 3 days earlier, after he had been swimming in Lake Manitoba while on vacation. He was asymptomatic other than some mild ocular irritation. The ocular and medical histories were unremarkable.
- A 41-year-old male presented with 6 months of bilateral symmetrical subconjunctival lesions that appeared after a motor vehicle collision (Fig. 1). Injuries included a unilateral zygomatic fracture repaired without incision around the orbit. Ocular examination revealed a visual acuity of 20/20 OU and bilateral, soft, yellow masses in the temporal bulbar conjunctiva which were easily displaced posteriorly with a cotton-tipped swab. Computed tomography disclosed continuity of both subconjunctival lesions with the intraconal space.