eLetters

580 e-Letters

  • Visual acuity and contrast sensitivity

    Editor,
    I am a 76-year-old suffering from myopic degeneration (is this ARMD?).I have been operated for cataract on my left eye with no significant improvement. I am strongly convinced that the usual measurement of visual acuity is almost meaningless. The major problem I find in practical life is the lack of adequate sensitivity to contrast. For example, in my bank they print their copy report with a gray ink...

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  • Mitomycin C for external DCR

    Editor,
    I read the paper by Liao et al with interest. It is indeed one of the biggest studies of mitomycin C in external DCR. I have few queries about how mitomycin C was applied. Firstly, where should the pledget of mitomycin C be placed if the posterior flaps of the nasal mucosa and the sac are not sutured? My practice is to take a U-shaped flap of both the nasal mucosa and the lacrimal sac. Second...

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  • Prevention of visual field defects after macular hole surgery

    Editor,
    We read with interest the article by Culliance and Cleary on the method of prevention of visual field defects after macular hole surgery. In their series, one group of 82 eyes received conventional pars plana vitrectomy surgery with mechanical induction of posterior vitreous detachment (PVD) around the optic disc followed by complete posterior cortical vitreous removal. Twenty-two percent of these...

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  • Relevance of angle closure in Asians

    Editor,
    In their article Foster et al have addressed an issue of relevance to developing countries that have a high prevalence of angle closure. The likelihood ratio of a positive test using results that we have reported (sensitivity 61.9% and specificity 89.3%) is approximately 6 which is similar to the LR for the authors' 15% cutoff. Invocation of pupillary block to explain the discrepancy seems r...

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  • Susceptibility to ocular autoimmune disease

    Editor,
    We read with interest the Newsdesk piece in the March 2000 issue of the journal, commenting on recent studies indicating a conceptual shift in the understanding of the molecular basis of differential susceptibility to organ-specific autoimmune diseases. However, we were disappointed that the Newsdesk piece was restricted to studies of the animal model of multiple sclerosis and not that of uveitis....

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  • Changing thresholds for cataract surgery

    Editor,
    We congratulate Hugh Taylor on his editorial in which he discusses the volume of cataract surgery which needs to be done. We were particularly interested by his calculations drawing attention to the effect of changing the visual threshold at which the decision to undertake cataract surgery is made.

    We have reviewed a series of eight audits of cataract surgery to determine the visual acuities a...

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  • Irradiation for reccurent pterygia

    Editor
    The article by Forbes et al on cheek mucosa is indeed interesting and helpful in cases of reccurent pterygia, but as they have given irradiation to cases after surgery it becomes a bias as to how much better is cheek mucosa compared with conjunctiva autograft.

    Secondly, have they considered the use of buccal mucosa for the same as cheek mucosa is more difficult to harvest although I agr...

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  • Phaco with oil removal: reported experience from the Moorfields Eye Hospital

    Editor,
    We read Frau et al's report with interest and noted that our article in Ophthalmology was not cited as reference (Larkin G, Flaxel C, Leaver P. Phacoemulsification and silicone oil removal through a single corneal incision. Ophthalmology 1998;105:2023-7). In this article, we reported our experience at Moorfields Eye Hospital with 34 eyes prospectively evaluated to l...

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  • Experience from the Kikuyu Eye Unit in Nairobi

    Editor,
    I have visited the Kikuyu Eye Unit near Nairobi on a yearly basis since 1992, and have witnessed at first hand both there and in Somalia the enormous burden of poverty and ill health described and quantified in the editorial. What strikes me very forcibly is the sheer number of hugely disadvantaged people. This, and the distressing and widening disparity in health and income between these peopl...

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  • Role of OK-432 in other vascular tumours

    Your article is very interesting and indeed very promising as far the management of lymphangiomas is concerned. Do the authors think this drug has any role in the management of capillary haemangiomas or other vascular abnormalities of the eye?

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