79 e-Letters

published between 2012 and 2015

  • Data accuracy in estimates of treatment incidence for retinopathy of prematurity
    Annegret H Dahlmann-Noor

    We read the paper by Painter et al. with great interest. The authors have compiled important information about trends in the incidence and treatment of retinopathy of prematurity (ROP) in the United Kingdom (UK) [1]. The authors have used data linkage of routine NHS datasets which is an impressive example of data analysis to evaluate trends. Here the authors demonstrate the impact of improved survival of low-birth weight...

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  • Re:Outcomes of epiretinal membrane surgery in highly myopic eyes: a case-control study
    Jean B. Conart

    Dear Editor,

    We thank Huisingh and McGwin, Jr for their comments on our study. We basically agree with their remark regarding the study design. We hypothesized that high myopia could affect surgical outcomes and considered it as a risk factor. Highly myopic eyes were selected based on axial length and were matched for potential confounding factors (i.e., duration of symptoms and preoperative visual acuity) with...

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  • Re:Data inconclusive to recommend oral azithromycin over oral doxycycline in meibomian gland dysfunction
    Mohsen B Kashkouli

    We would like to thank Michel J. Belliveau for the comments on our recently published trial(1) on comparing the oral Azithromycin with doxycycline. All the concerns regarding the data presentation are being addressed in the following paragraphs. The null hypothesis had been written in the study design (ClinicalTrials.gov; NCT01783860) which was not mentioned in the article because of word number limitation. It was a tw...

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  • Retinal Tracking System Reduces Head Tilt Effect During Optical Coherence Tomography Examination
    Young Hoon Hwang

    Previously, I reported that head tilting during optical coherence tomography (OCT) image acquisition affects circumpapillary retinal nerve fibre layer (RNFL) and macular retinal thickness measurement.1 Although the subject's head and chin are appropriately positioned, a possibility of inter-test variation in head alignment still exists. A useful strategy to overcome this limitation is tracking the subsequent image to the...

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  • Comment on : Amniotic membrane graft to conjunctival flap in treatment of non-viral resistant infectious keratitis: a randomised clinical study
    Dear sir, We read the article by Abdulhalim et al with great interest (1) . The article remind us that both CONJUNCTIVAL FLAP and AMNIOTIC MEMBRANE GRAFT are effective in corneal healing and can be an alternative to keratoplasty in cases of infectious keratitis. However we have some concerns: The way to assess the mean size of ulcer and depth and the healing time in the post operative period would have made the comparis...
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  • Data inconclusive to recommend oral azithromycin over oral doxycycline in meibomian gland dysfunction
    Michel J. Belliveau

    Kashkouli and colleagues (1) have studied a subject with high clinical relevance. Meibomian gland dysfunction is prevalent and treatment often unsatisfactory. Oral azithromycin has advantages over oral doxycycline including dosing and side effects as reviewed in the article.

    There are a few problems with the methods to be highlighted so that readers can draw accurate conclusions, and validation studies be constr...

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  • Re: Comparison of umbilical cord serum and amniotic membrane transplantation in acute ocular chemical burns
    Abdullah Ilhan

    Dear Editor; We have read the article entitled "Comparison of Umbilical Cord Serum and Amniotic Membrane Transplantation in Acute Ocular Chemical Burns" by Sharma et al. with interest.1 The authors compared the efficacy of amniotic membrane transplantation (AMT) and umbilical cord serum (UCS) in patients with ocular chemical burns. They found that UCS treatment was superior to AMT in maintaining a better ocular surface....

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  • Outcomes of epiretinal membrane surgery in highly myopic eyes: a case-control study
    Carrie Huisingh
    The published study by Conart and colleagues is described as a nested case-control study; however, this is incorrect.1 Participants were selected based on the presence or absence of high myopia and were matched with respect to time of surgery, duration of symptoms, and preoperative visual acuity. The participants were followed up prospectively to compare anatomical and functional outcomes following epiretinal membrane (ERM) surg...
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  • Quantifying Symptomatology in Convergence Insufficiency Using the Convergence Insufficiency Symptom Survey
    Eric Borsting

    We are in agreement with Horwood and associates that the Convergence Insufficiency Symptom Survey (CISS) was not designed as a screening tool for convergence insufficiency (CI) and thus should not be used as such. However, we would like to point out that their conclusion from their recent paper(1) that the "majority of subjects with clinical signs of CI (reduced convergence and fusional ranges) have no symptoms," is not...

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  • Recent trends in glaucoma surgery, accurately assessed? - A case for updated coding?
    Andrew Walkden

    We read with interest the recent article by Murphy, et al*. The authors report a six-fold increase in the use of glaucoma drainage devices (GDDs) between 2003 and 2012. They also note that non-penetrating glaucoma surgery (NPGS) and minimally-invasive glaucoma surgery (MIGS) were not analyzed due to the small numbers being undertaken. One confounder is MIGS have the same code as for GDDs & have been in the UK since...

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