eLetters

133 e-Letters

published between 2014 and 2017

  • 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...

    Show More
  • Details of participants in the study are incomplete.
    Sanjiv K Gupta

    I have read the article with great interest as it is one of the early reports of this emerging technology. Going through the article I noticed that though the inclusion criteria describe that the patients with refractive error less than 10 diopter of myopia and astigmatism less than 5 diopter were included, the results show only the average myopia and standard deviation. The range of spherical myopia is not given, though...

    Show More
  • Dua's Layer and Success of Non Penetrating Glaucoma Filtering surgery
    Sunil R Moreker

    Dear Editor,

    We read with interest the article on extension of Dua's layer into trabecular meshwork.(1)This knowledge has implications also in success of newer surgeries like deep sclerectomy. Deep Sclerectomy is a safer option to trabeculectomy but is known to fail in some cases (2)(3). Guedes et al(4) have investigated the factors affecting the success of this surgery. George Kistos et al (5) have discussed a...

    Show More
  • Reply to Response: Optical coherence tomography of the suprachoroid after CyPass Micro-Stent implantation for the treatment of open angle glaucoma
    Iqbal IK Ahmed

    We thank Huisingh and McGwin (1) for their interest and comments regarding our manuscript describing the optical coherence tomography (OCT) findings after CyPass Micro-Stent implantation for the treatment of open angle glaucoma (2). The importance of formal statistical analysis was considered at the time of submission. Given the small sample size of the study, and the descriptive nature of the study, we found that statist...

    Show More
  • CHARACTERIZATION OF UVEITIS IN ASSOCIATION WITH MULTIPLE SCLEROSIS
    Fatih C. Gundogan

    Dear Editor, We congratulate Messenger et al. for their study entitled 'Characterization of uveitis in association with multiple sclerosis'.[1] The authors investigated clinical and demographic characteristics of multiple sclerosis (MS) patients with uveitis. The study has significant results including the ratios of anterior, intermediate and posterior uveitis in this group of MS patients.

    We found out that 54%...

    Show More
  • Three-year follow-up of posterior chamber toric phakic intraocular lens implantation for the correction of high myopic astigmatism in eyes with keratoconus.
    Shraddha P. Sureka

    Dear Editor,

    We read with great interest the article by Kamiya et al about use of toric implantable collamer lenses (ICL) in patients with keratoconus. [1] The results are very encouraging. However, we found some discrepancies in the study.

    The mean manifest spherical equivalent was -9.70 D, up to -13.75 D. The Amsler-Krumeich classification system stage 2 includes patients up to -8.0 D of myopia, as...

    Show More
  • Re:Reproducibility of aberrometry-based intraoperative refraction during cataract surgery, Statistical issues
    Jan O Huelle

    Dear Sirs, We are grateful to Sabour and Ghassemi for their interest in our recent article[1]. In our understanding, they query why we did not use intra class correlation (ICC) as a measure for precision. Our test-retest reliability (absolute agreement ICC) is derived from the maximum likelihood (LM) estimates of the one-way random effects model of the form: yij...

    Show More
  • An additional explanation for azithromycin's efficacy in treating meibomian gland dysfunction
    Yang Liu

    We would like to congratulate Dr. Kashkouli et al for their recently published paper "Oral azithromycin versus doxycycline in meibomian gland dysfunction: a randomized double masked open label clinical trial". The authors found that azithromycin induced a significantly better overall clinical response than doxycycline, and attributed this effect to the antibacterial and anti-inflammatory effects of azithromycin. However,...

    Show More
  • Reporting of harms in clinical trials: why do we continue to fail?
    Imran Mahmud

    O'Day and colleagues describe in their recent paper the inadequate reporting of harm in randomized controlled trials of intra-vitreal therapies for diabetic macular oedema(O'Day et al., 2014). At first glance, the results are alarming. An average of only six recommendations of the 2004 CONSORT guidelines extension covering harms were met. Ophthalmologists are not alone in their inadequate reporting, however. Several oth...

    Show More
  • Perceptual learning in visual acuity and contrast sensitivity: continuous improvement or discovery effect?
    Michael Bach

    In their paper "Repetitive tests of visual function improved visual acuity in young subjects" Otto and Michelson [1] assessed effects of practice on visual acuity, using the Freiburg Visual Acuity Test "FrACT" developed by one of us [2,3]. At first glance they seem to confirm our findings [4], which showed a marked increase of visual acuity after visual training, more than 0.1 logMAR. At closer inspection, discrepancies...

    Show More

Pages