Are high-efficiency particulate air (HEPA) filters and laminar air flow necessary in operating rooms to control acute post-operative endophthalmitis?

Purpose: To compare the five-year incidence of acute post-operative endophthalmitis following cataract surgery, between centers with and without laminar air flow and high-efficiency particulate air (HEPA) filters in operating rooms. Methods: Retrospective analysis of medical records of patients operated in a single network of a tertiary and four secondary hospitals across north India. Cases of endophthalmitis were identified from the records between January 2013 and June 2018. Protocols and consumables were standardized across all hospitals. The only infrastructural difference being the presence of laminar air flow and high energy particulate air filters in operating rooms of the tertiary center. The type of surgery, along with the demographic and socio-economic details, were captured and analyzed, using z-test for proportions and logistic regression. Results: Out of 88,297 cataract surgeries conducted, 36 cases of endophthalmitis were reported. The incidence of endophthalmitis across the network was estimated to be 0.041%, (95% CI: 0.027 to 0.054). There was no statistically significant difference between the incidence of POE at the tertiary (0.042%) and secondary centers (0.039%). Certain risk factors for high endophthalmitis incidence were identified, namely patients undergoing small incision cataract surgery and belonging to lower socio-economic status. However, for both factors the difference was not statistically significant. Conclusion: The five-year incidence of acute post-operative endophthalmitis in our network was found comparable to the best reported in literature. Incidence at secondary centers, without laminar air flow and high energy particulate air filters was found comparable to that in the tertiary center having these facilities.

Awareness regarding eye donation among staff of a tertiary eye care hospital in North India.

PURPOSE: To assess the awareness, knowledge and attitude regarding eye donation in staff of a tertiary eye care hospital in North India. METHODS: A prospective, cross-sectional study was conducted on the employees of a tertiary eye care centre (urban area) along with its four secondary centres (rural area). Socio-demographic profile, awareness, knowledge and attitude of 507 employees regarding eye donation were evaluated through a pretested, self-administered questionnaire. Knowledge-based questions were scored. RESULTS: Of the 507 participants, 327 (64.5%) participants were from medical/paramedical field (Group 1) and 180 (35.5%) were from non-medical field (Group 2). Awareness about eye donation was 99%. Twenty (3.95%) participants scored poor (0-8), 90 (17.75%) had a fair score (9-16) and 397 (78.30%) had a good score (17-24). Good knowledge was found in significantly more (P = 0.01) participants in Group 1 (77.37%) as compared to Group 2 (70.1%). Four hundred and fifty-seven (90.13%) participants were willing to pledge their eyes for donation, the prime motivational force being spreading vision to the blind [346 (68.24%)]. The perceived reasons for not pledging were religious [28 (5.52%)], thought of family getting upset [29 (5.72%)] and scepticism regarding proper usage of tissue [64 (12.62%)]. CONCLUSION: The study demonstrated that although there is a substantial awareness about eye donation, there are certain lacunae in the knowledge and perceptions among staff of an eye care hospital. With the correct knowledge and attitude, they can contribute by creating awareness and motivating the people for eye donation while carrying out their routine hospital activities.

Eye donation in north India: Trends, awareness, influences and barriers.

Purpose: To understand trends, awareness, influences and barriers to eye donation in Indian society. Methods: This cross sectional study was conducted in Delhi from March 2017 to February 2018. About 10 hospitals collaborated with the Eye Bank under Human Cornea Retrieval Program (HCRP). Eye Bank recruited Eye Donation Counselors (EDCs) to approach family members of the deceased. A pretested questionnaire was used for this study. Irrespective of whether the next of kin of the deceased consented for eye donation or not, the option of participating in the survey was given. Results: Out of 473 potential donors identified, 407 (86%) next of kin consented to participate in the study. Of these, 388 (95.3%) were males and 19 (4.7%) were females. About 168 (41%) consented for eye donation and were assigned to donor group, while 239 (59%) participants refused eye donation and were assigned to non-donor group. Majority of the participants were siblings 170 (41.8%) of the deceased and the mean age of the deceased was 42.71 ± 17.56 years. The foremost concern before decision-making was transparency in how the cornea would be used (32.25%). The concern with regards to whether the body would remain intact after eye donation significantly decreased the probability of consent for eye donation. Conclusion: The study highlights that barriers to eye donation in India are not cultural or religious but more due to misinformation and proper utilization of the donated tissue. This study also emphasizes the pivotal role of EDC's in facilitating the eye donation movement.