title: Macular Thickness Variability in Primary Open Angle Glaucoma Patients using Optical Coherence Tomography.
abstract: OBJECTIVE
  To compare the difference of retinal macular thickness and macular volume using optical coherence tomography (OCT) in primary open angle glaucoma (POAG) patients with the normal subjects.
  
  
  METHODS
  This observational case control study included primary open angle glaucoma (POAG) patients (n = 124 eyes) and healthy subjects in the control group (n = 124 eyes). All subjects underwent detailed history, general and systemic exami -nation. Complete ocular examination included best corrected visual acuity (BCVA), slit lamp examination, intraocular pressure (IOP), central corneal thickness, gonioscopy, dilated fundus biomicroscopy. Field analysis was done by white on white Humphrey Field Analyzer (Carl Zeiss). Optical coherence tomography imaging of macular area was performed using Stratus OCT (OCT 3, Version 4, Carl Zeiss Inc, Dublin, California, USA). In both these groups, parameters analyzed were macular thickness, inner macular thicknesses (IMT), outer macular thicknesses (OMT), central macular thick ness (CMT) and total macular volume (TMV).
  
  
  RESULTS
  The POAG group had significantly decreased values of TMV, OMT and IMT, compared to control group, while there was no difference in CMT, presumably due to absence of ganglion cells in the central part. Thus, macular thickness and volume parameters may be used for making the diagnosis of glaucoma especially in patients with abnormalities of disc.
  
  
  CONCLUSIONS
  Macular thickness parameters correlated well with the diagnosis of glaucoma. How to cite this article: Sharma A, Agarwal P, Sathyan P, Saini VK. Macular Thickness Variability in Primary Open Angle Glaucoma Patients using Optical Coherence Tomography. J Current Glau Prac 2014;8(1):10-14.
authors.affiliation: Assistant Professor, Department of Ophthalmology, People's College of Medical Sciences and Research Centre, Bhopal, Madhya Pradesh, India.
authors.forename: Anjali
authors.initials: A
authors.lastname: Sharma
authors.affiliation: Assistant Professor, Department of Ophthalmology, People's College of Medical Sciences and Research Centre, Bhopal, Madhya Pradesh, India.
authors.forename: Prakashchand
authors.initials: P
authors.lastname: Agarwal
authors.affiliation: Professor and Head, Department of Ophthalmology, Sathyan Eye Care Hospital and Coimbatore Glaucoma Foundation, Coimbatore, Tamil Nadu, India.
authors.forename: P
authors.initials: P
authors.lastname: Sathyan
authors.affiliation: Professor and Head, Department of Ophthalmology, People's College of Medical Sciences and Research Centre, Bhopal, Madhya Pradesh, India.
authors.forename: V K
authors.initials: VK
authors.lastname: Saini
keywords: Glaucoma; Macular thickness; Optical coherence tomography.