9. Detailed description of procedure / processes : With all permissions, translation of scales to vernacular language of Karnataka (Kannada) would begin. The translation would be carried out by the subject expert in the research team. Post this, the scales would be back translated from Kannada to English to ensure accuracy and resemblance to the original scale. The final version would be reviewed by the research team, involving the subject expert and expert from optometry (guide and co-guide respectively). The participants will be recruited from the cardiology department at Kasturba Medical College. The doctors and staff will be educated about the inclusion and exclusion criteria  of the study, so that they can administer the questionnaires when the patients come for a follow up,  The patients will be informed about the study, informed consent will be obtained from the patients, Information about demographic data and clinical details will be collected from the screened participants, The questionnaires FSDS-R, ASEX, EmPHasis, RSES and, BIS will be administered on the participants. Data collection would end in May 2023. This would be followed by data analysis and writing of thesis which is to be submitted in July 2023.