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Online tool for converting finger counting acuity into Snellen equivalent
The authors describe an online tool which has the purpose of converting count finger measurements of visual acuity into Snellen equivalents. The purpose of this is to allow the re-interpretation of retrospectively collected data that provide visual acuity in this...
PALs use for convergence excess esotropia
This retrospective study includes a disparate group of 39 esotropic patients with an accommodative element from two different clinics with differing prescribing practices. Seven children were excluded due to previous treatment or insufficient follow-up. In all patients single vision glasses...
Bitemporal hemianopsia as a result of ethambutol toxicity
The authors present six cases of visual loss in patients treated with ethambutol for mycobacterium avium complex, including four patients with bitemporal hemianopsia. Two additional patients were undergoing glaucoma monitoring and developed visual field defects with ethambutol treatment, which recovered...
Corneal molecular and cellular biology for refractive surgeon
This is an interesting literature review that looks into the recent advances concerning the corneal molecular and cellular processes that are involved in the wound healing response after excimer laser surface ablation and LASIK surgery. It talks about the complex...
Conjunctivochalasis and aqueous tear deficiency – which one causes symptoms?
This review sought to determine whether conjunctivochalasis (CCh) obliterates the fornix tear reservoir and thus mimics aqueous tear deficiency (ATD). Patients were divided into two groups, with aqueous tear deficiency (CCh +ATD) or without (CCh –ATD), based on results of...
An unusual third nerve palsy case report
The authors present the unusual case of a 23-year-old male presenting to hospital with right eye pain, right upper eyelid ptosis, blurred vision and diplopia, developing immediately after a penetrating injury to his right upper eyelid. On assessment he was...
Retinal changes in Leber hereditary optic neuropathy
The objective of this study was to describe the changes in the retinal ganglion cell complex (GCC) relative to the retinal nerve fibre layer (RNFL) over time, in patients with Leber’s hereditary optic neuropathy (LHON). For this study, 21 patients...
Screening for hydroxychloroquine retinopathy
The American Academy of Ophthalmology has updated the recommendations for screening for hydroxychloroquine retinopathy based on new scientific evidence that toxicity is not rare when hydroxychloroquine is used long-term, and that risk is dependent on the daily dose by weight....
Aflibercept, bevacizumab or ranibizumab for DMO
This is a two-year randomised clinical trial of 660 patients with visual acuity impairment from diabetic macular oedema (DMO) who were randomised to monthly injections of 2.0mg aflibercept, 1.25 mg bevacizumab or 0.3mg ranibizumab. Focal or grid laser was performed...
A case report of visual loss as a consequence of coeliac disease
The authors present a case of permanent visual loss secondary to occipital lobe calcification in coeliac disease, the first reported such case. The 58-year-old man had been diagnosed with coeliac disease 20 years prior to his visual investigations and had...
Association of asthenopia and heterophoria
Heterophoria varies over time and asthenopic symptoms may be greater when the heterophoria is larger. Thus a close intra-individual correlation may exist between heterophoria and discomfort during reading. The authors investigated the variability of both parameters in 20 individuals who...
