Microperimetry – A New Tool for Assessing Retinal Sensitivity in Macular Diseases
Journal Title: Journal of Clinical and Diagnostic Research - Year 2017, Vol 11, Issue 7
Abstract
Introduction: Macular disease is the leading cause of low vision in the Western world. Drusen and pigmentary irregularities are common among the rural Northern Indian population. The disease process leads to loss of central vision, metamorphopsia, macropsia or micropsia and colour vision defect. Aim: To study the retinal sensitivity changes in macular diseases using microperimetry. Materials and Methods: It was an observational study, conducted in the Department of Ophthalmology at a rural tertiary care hospital. This study was started from December 2014 until June 2016, in all patients with macular disease above the age of 20 years attending the outpatient department. Microperimetry was done for 84 eyes of 52 patients with macular disease. Mean retinal Sensitivity (MS) and fixation stability was evaluated. The statistical analysis of mean retinal sensitivity, central 2˚ and 4˚ fixation was done by calculating the mean and standard deviation using 95% confidence interval. Results: The range of age was between 20-81 years. Majority were 32 males (62%) and 20 females (38%). Out of the 84 eyes studied, majority of the macular disease were Age-Related Macular Degeneration (AMD) (50%). Rest 50% were other macular diseases. The mean retinal sensitivity (dB) shown by microperimetry was 10.83 in AMD, 9.12 in Cystoid Macular Oedema (CME), 10.34 in Epiretinal Membrane (ERM), 10.74 in Pigment Epithelial Detachment (PED), 8.96 in Central Serous Chorioretinopathy (CSCR), 6.43 in macular dystrophy, 7.15 in Lamellar Hole (LMH), 9.8 in Pseudomacular Hole (PMH), 3 in geographic atrophy, 11.1 in macular telangiectasia, 5.6 in Berlin oedema, 12.3 in macular scar and 15.2 in haemorrhage in macula. The study showed 64% of the eyes had stable 2˚ central fixation, 35% had relatively unstable fixation and 1% had unstable fixation. No significant correlation between retinal sensitivity and retinal thickness in AMD was found. Conclusion: This study shows that microperimetry can be a useful tool for objective evaluation of macular function and progression of the disease.
Authors and Affiliations
Memota Laishram, Krishnagopal Srikanth, AR Rajalakshmi, Swathi Nagarajan, G Ezhumalai
Keywords
Related Articles
- EP ID EP355541
- DOI 10.7860/JCDR/2017/25799.10213
- Views 86
- Downloads 0
Comparative Evaluation of Propofol Fentanyl, Propofol-Midazolam and Propofol-Dexmedetomidine on Haemodynamic and Postoperative Recovery for Endoscopic Retrograde Cholangiopancreatography
Introduction: Adequate patient sedation is mandatory for Endoscopic Retrograde Cholangiopancreatography (ERCP). Recent studies indicate that propofol and combination of midazolam or fentanyl or dexmedetomidine is superio...
Familial Schwannomatosis: A Diagnostic Challenge
Schwannomatosis is a disease characterized by the development of multiple benign tumours originating from Schwann cells. Schwannomatosis is a member of the family of diseases known as Neurofibromatosis (NF). Patients wit...
Pemphigus Vulgaris: Case Report and Review of Literature
ABSTRACT Autoimmune mucocutaneous disorders of oral cavity constitute an important group of lesions that pose diagnostic, therapeutic and prognostic difficulties to the dental clinician. Pemphigus vulgaris is an autoimmu...
A Comparative Evaluation of Accuracy of the Dies Affected by Tray Type, Material Viscosity, and Pouring Sequence of Dual and Single Arch Impressions- An In vitro Study
Introduction: The clinician’s skill, impression techniques, and materials play a very important role in recording fine details in an impression for accuracy of fixed partial denture prosthesis. Impression of prepared tee...
Evaluation of Correlation between Salivary Calcium, Alkaline Phosphatase and Osteoporosis- A Prospective, Comparative and Observational Study
Introduction: Fixed and/or removable prosthodontics caters to the restorative needs of the largest count of geriatric patients whose rehabilitative procedures depend on the quality and quantity of available bone. The com...