Case series of central retinal artery occlusion in COVID-19-associated rhino-orbital-cerebral mucormycosis

Rhino orbital Mucormycosis caused by filamentous fungus of mucoraceae family was considered a rare disease affecting immunocompromised and diabetics with ketoacidosis until the recent COVID 19 pandemic. We are presenting a series of six cases of Rhino orbital cerebral Mucormycosis with central retinal artery occlusion. All six cases had common history of COVID 19 infection in recent past with sinusitis, proptosis and total ophthalmoplegia with central retinal artery occlusion on presentation. MR imaging showed invasive pan sinusitis with orbital and cerebral involvement. Urgent debridement was done and histopathological examination showed broad, filamentous aseptate fungi suggestive of Mucormycosis. All patients inspite of intravenous Amphotericin B with local debridement did not show any improvement and expired within a week of presentation. Hence our study shows poor prognosis of post covid 19 associated Mucormycosis with central retinal artery occlusion.

Comparing the efficacy of sodium hyaluronate eye drops and carboxymethylcellulose eye drops in treating mild to moderate dry eye disease

Purpose: Aim of this study was to compare the efficacy of sodium hyaluronate (SH) and carboxymethyl cellulose (CMC) eye drops in treating mild to moderate dry eye disease in terms of relief of symptoms, mean change in tear film breakup time, Schirmer’s test, and impression cytology of conjunctiva from baseline. Methods: An observational study was carried out during a 2?year period in our tertiary referral hospital. The study consisted of 60 patients randomly allotted to two groups to receive SH and CMC eye drops for an 8?week period. Ocular surface disease index, tear film breakup time, and Schirmer’s test were performed at baseline visit and 4 and 8 weeks of treatment, and impression cytology of conjunctiva was performed at baseline and 8 weeks. Results: Significant improvement in patient symptoms, tear film breakup time, and Schirmer’s test from baseline was seen in both SH and CMC groups at 8 weeks posttreatment, whereas impression cytology of conjunctiva in both groups did not show significant improvement at 8 weeks of treatment. Data analysis using unpaired t?test showed comparable results. Conclusion: Both CMC and SH demonstrated equal efficacy in treating mild to moderate dry eye disease.

A simple technique of meibography for morphological and functional evaluation of meibomian glands in dry eye conditions

Purpose: Dry eye disease (DED) is because of a decrease in the tear film’s volume or a change in the composition of tears. Evaporative dry eye is the most common type, which is due to meibomian gland dysfunction (MGD). In this study, the morphology of meibomian glands was evaluated in all kinds of dry eyes to look for any loss of meibomian glands, assess the function of remaining glands, and investigate the relationship between anatomy, function, and severity of DED. Methods: A total of 300 patients were included in the study, with 150 eyes in the study group and 150 in the control group. Meibomian gland morphology was assessed by examining the tarsal plate after everting the eyelids. Tear film function was evaluated using tear film break?up time (TBUT) and Schirmer’s test (SCH I and II). Meibomian gland morphology was examined with a slit?lamp under magnification, a transilluminator using a small light emitting diode (LED) bulb, and non?contact meibography using an auto refracto?keratometer (ARK). Results: Females had a higher prevalence of dry eyes in our study. In all, 103 eyes (68.6%) in the study group had evaporative dry eye, making it the most prevalent type. Among the 150 controls, 104 controls with 69.3% had no dry eye symptoms, and in those with symptoms, the evaporative type was the most common, with a 28% prevalence. Conclusion: TBUT should be performed in all patients with detectable MG abnormality. Meibography has high specificity and sensitivity to diagnose MGD and in turn dry eyes and should be considered a routine screening modality.

A comparison of sub-tenon block with peribulbar block in small-incision cataract surgery

Purpose: To compare the efficacy and safety of sub?tenon block to peribulbar block with respect to analgesia, akinesia, and complications. Methods: It is an observational study conducted at a government hospital in Karnataka. Seventy patients who came to the ophthalmology OPD for small?incision cataract surgery (SICS) under local anesthesia were included in the study. The participants were divided into two groups of 35 as per the surgeon. The pain was evaluated at the time of administration of the block, during the surgery, and during the postoperative period of 4 h. Akinesia was noted in both the groups and the time of onset of akinesia was noted. Any complications associated with the block such as chemosis or subconjunctival hemorrhage were also noted. Statistical analysis was done using PSS version 25.0, where P < 0.05 was considered significant. Results: The baseline pain score was higher in the peribulbar group (1.57). The onset of akinesia was faster in sub?tenons (90.34 s). Complete akinesia was achieved in 82.9% of patients after peribulbar block. There was no significant difference in complications in both groups. Conclusion: Sub?tenons block is an effective and safer technique of ocular anesthesia for SICS. It can be considered as an alternative to the conventional peribulbar block for SICS.