Indian Journal of Clinical and Experimental Ophthalmology
  • Year: 2018
  • Volume: 4
  • Issue: 1

Impact of cataract on critical flicker fusion frequency: A hospital based study

1Assistant Professor, Dept. of Ophthalmology, ESIC Medical College, Sanathnagar, Hyderabad

2Associate Professor, Dept. of Physiology, Mallareddy Co-Ed Medical College, Suraram, Medical District, Secunderabad, Hyderabad, India

*Corresponding Author: Email: drjeevatalluri@gmail.com

Online published on 24 September, 2018.

Abstract

To know whether cataract alters critical flicker fusion frequency.

A hospital based observational study.

There were 113 patients with immature cataract fundus view are studied. Pre and post operatively critical flicker fusion frequency (CFFF) test conducted and frequency values noted. All patients were recorded of vision, relative afferent pupillary defect (RAPD), intraocular pressure and dilated fundus findings. Any abnormal fundus, glaucoma and RAPD were excluded.

CFFF values taken for analysis. There was no change in CFFF values post operatively. Those who had higher CFFF values remained higher postoperatively also. And similarly remained low those with lower CFFF values. There was no statistical significance (p-value=0.2182).

Cataract did not alter the CFFF. High or low CFFF values can be concluded as dependant on optic nerve and retinal health status.

Keywords

Cataract, Critical flicker fusion frequency, Fundus