TITLE

Evaluation of relationship of ocular parameters and depth of anisometropic amblyopia with the degree of anisometropia

AUTHOR(S)
Zaka-ur-Rab, Simi
PUB. DATE
June 2006
SOURCE
Indian Journal of Ophthalmology;Jun2006, Vol. 54 Issue 2, p99
SOURCE TYPE
Academic Journal
DOC. TYPE
journal article
ABSTRACT
Purpose: (1) To find out the relationship of the depth of amblyopia with the degree of anisometropia, in untreated cases of anisometropic amblyopia without strabismus, for both myopic and hypermetropic individuals. (2) To find out the relationship between various ocular parameters, such as axial length and corneal curvature, with the degree of anisometropia between the two eyes.Materials and Methods: This prospective study was conducted between January 2001 and March 2003, in 85 cases of untreated anisometropic amblyopia, who attended the author's out patient department. All these patients were subjected to a meticulous ocular examination, with special emphasis on (1) refraction under cycloplegia (2) best corrected visual acuity (3) measurement of axial length by A Scan (4) keratometry . The depth of amblyopia was calculated in two ways: (1) By finding out decimal visual acuity for each eye and subsequently calculating their difference. (2) By converting the Snellen acuity into Log MAR units, which was calculated by finding the Logarithm of the reciprocal of the decimal visual acuity for the two eyes, followed by calculating the difference between the two. The difference in refraction between the two eyes as a measure of anisometropia, was determined by the difference in spherical equivalent between the refraction for each eye.Results: On comparing hypermetropic and myopic cases, a significant correlation was found between depth of amblyopia and the degree of anisometropia, in both myopic and hypermetropic patients. The correlation coefficients were however, found to be greater for hypermetropic than myopic individuals. It was observed that the difference between the axial length of the two eyes contributed to a major part of anisometropia, more so in myopic cases.Conclusions: The depth of amblyopia correlates with the degree of anisometropia in previously untreated anisometropic amblyopia patients.
ACCESSION #
21277664

 

Related Articles

  • Reduction in astigmatism in manual small incision cataract surgery through change of incision site. Gokhale, Nikhil S.; Sawhney, Saurabh // Indian Journal of Ophthalmology;Sep2005, Vol. 53 Issue 3, p201 

    To compare the astigmatism induced by a superior, supero-temporal and temporal incision in manual small incision cataract surgery. Induced astigmatism was analysed by Cartesian coordinates based analysis, using Holladay's system. Mean astigmatism induced by surgery was 1.28 Dx2.9 degrees for...

  • Evaluation of central, steady, maintained fixation grading for predicting inter-eye visual acuity difference to diagnose and treat amblyopia in strabismic patients. Kothari, Mihir; Bhaskare, Amar; Mete, Deepali; Toshniwal, Svetlana; Doshi, Priti; Kaul, Shalini // Indian Journal of Ophthalmology;Sep2009, Vol. 57 Issue 4, p281 

    Background: Diagnosis of amblyopia in preverbal strabismic patients is frequently made by binocular fixation preference (BFP) testing. The reports on reliability of BFP are equivocal. This study evaluated the reliability of BFP testing in patients with horizontal strabismus. Materials and...

  • Amblyopia and sensory features at initial presentation of Brown syndrome: an issue to recognize. Sekeroglu, H T; Muz, E; Sanac, A S; Sener, E C; Arslan, U // Eye;Apr2013, Vol. 27 Issue 4, p515 

    PurposeTo investigate the frequency of amblyopia and sensory features at initial presentation in patients who had unilateral congenital Brown syndrome (BS) and to identify the potential risk factors for amblyopia in BS.MethodsThe study conducted with patients who had unilateral congenital BS....

  • Evaluation of hepatic impairment on pharmacokinetics and safety of crizotinib in patients with advanced cancer. El-Khoueiry, Anthony B; Sarantopoulos, John; O'Bryant, Cindy L; Ciombor, Kristen K; Xu, Huiping; O'Gorman, Melissa; Chakrabarti, Jayeta; Usari, Tiziana; El-Rayes, Bassel F // Cancer Chemotherapy & Pharmacology;Apr2018, Vol. 81 Issue 4, p659 

    Purpose: This phase 1 study evaluated the effect of hepatic impairment on pharmacokinetics and safety of crizotinib in patients with advanced cancer.Methods: Patients were dosed according to hepatic function classified by modified National Cancer Institute Organ...

  • Defining secondary progressive multiple sclerosis. Lorscheider, Johannes; Buzzard, Katherine; Jokubaitis, Vilija; Spelman, Tim; Havrdova, Eva; Horakova, Dana; Trojano, Maria; Izquierdo, Guillermo; Girard, Marc; Duquette, Pierre; Prat, Alexandre; Lugaresi, Alessandra; Grand'Maison, François; Grammond, Pierre; Hupperts, Raymond; Alroughani, Raed; Sola, Patrizia; Boz, Cavit; Pucci, Eugenio; Lechner-Scott, Jeanette // Brain: A Journal of Neurology;9/1/2016, Vol. 139 Issue 9, p2395 

    A number of studies have been conducted with the onset of secondary progressive multiple sclerosis as an inclusion criterion or an outcome of interest. However, a standardized objective definition of secondary progressive multiple sclerosis has been lacking. The aim of this work was to evaluate...

  • Prospective, Randomized Study on the Efficacy and Safety of Local UV-Free Blue Light Treatment of Eczema. Keemss, Kim; Pfaff, Stephanie C.; Born, Matthias; Liebmann, Jörg; Merk, Hans F.; von Felbert, Verena // Dermatology (10188665);Sep2016, Vol. 232 Issue 4, p496 

    Background: Blue light was shown to reduce the activation of T cells and modulate cytokine release in vitro. Therefore, we investigated the efficacy of blue light in the treatment of eczema.Methods: A sample of 21 patients with mild to moderate eczema were locally...

  • Frailty and Subsequent Disability and Mortality among Patients with Critical Illness. Brummel, Nathan E.; Bell, Susan P.; Girard, Timothy D.; Pandharipande, Pratik P.; Jackson, James C.; Morandi, Alessandro; Thompson, Jennifer L.; Chandrasekhar, Rameela; Bernard, Gordon R.; Dittus, Robert S.; Gill, Thomas M.; Ely, E. Wesley // American Journal of Respiratory & Critical Care Medicine;7/1/2017, Vol. 196 Issue 1, p64 

    Rationale: The prevalence of frailty (diminished physiologic reserve) and its effect on outcomes for those aged 18 years and older with critical illness is unclear.Objectives: We hypothesized greater frailty would be associated with subsequent mortality, disability, and...

  • Keep an eye out for amblyopia. Shuan Dai // New Zealand Doctor;11/1/2006, p26 

    The article provides information on amblyopia, a unilateral or bilateral reduction of best-corrected visual acuity that cannot be attributed to any structural abnormality of the eye. The cause of the disease is mentioned. The five types of amblyopia are cited. The four types of treatment include...

  • Efficiency of occlusion therapy for management of amblyopia in older children. Brar, Gagandeep S.; Bandyopadhyay, Supratik; Kaushik, Sushmita; Raj, Surishti // Indian Journal of Ophthalmology;Dec2006, Vol. 54 Issue 4, p257 

    Purpose: To analyse results of full time occlusion therapy for amblyopia in children older than 6 years.Materials and Methods: This was a retrospective consecutive case series analysis of children treated for amblyopia at a tertiary care center. All children received...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics