Screen your screen-time


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Screen your screen-time

A new study has found that increased evening screen time during the COVID-19 pandemic negatively affected the sleep quality of people. The findings of the study were published in the journal Sleep.
During the lockdown period in Italy, daily internet traffic volume almost doubled compared to the same time in the previous year. Researchers conducted a web-based survey of 2,123 Italian residents during the third and seventh week of Italy’s first national lockdown.
The survey ran in the third week of lockdown (March 25 to 28, 2020) and evaluated sleep quality and insomnia symptoms, using the Pittsburgh Sleep Quality Index and the Insomnia Severity Index as means of measurement.
The second assessment survey, in the seventh week of lockdown (April 21 to 27, 2020), inquired about the usage of electronic devices in the two hours before falling asleep, in addition to repeating the sleep questionnaires.
Of the participants surveyed, 92.9 per cent reported an increase in their electronic device usage between the first and second surveys. These participants showed decreased sleep quality, an increase in insomnia symptoms, shorter total sleep times, and later bedtimes and rising times. Researchers found an increased prevalence of poor sleepers and respondents with moderate to severe insomnia symptoms only within this group of respondents.
Some 7.1 per cent of participants reported a decrease in evening screen time between the first and second survey, and conversely reported improved sleep quality and fewer symptoms of insomnia. This subgroup also demonstrated a decrease in the prevalence of poor sleepers and moderate/severe insomnia symptoms. These respondents went to bed consistently earlier after four weeks of home confinement.
Survey respondents who reported no change in their screen time exposure likewise showed no variations in their sleep habits. Notably, this group of responders had the best sleep quality and fewest insomnia symptoms in the first survey results, suggesting that the lockdown exacerbated negative sleep conditions for people already suffering from poor sleep quality.
Dr Federico Salfi, PhD student and first author of the paper, said, “The overuse of electronic devices in the hours before sleep was a deeply rooted habit in our society already before the pandemic emergency, in particular among young people. In our opinion, the current period of social distancing added fuel to the fire.”
Prof Michele Ferrara, Director of the Laboratory of Sleep Psychophysiology and Cognitive Neuroscience at the University of L’Aquila, said, “The evidence of a strong relationship between screen habits and the time course of sleep disturbances during the lockdown period suggests that, now, more than never, raising public awareness about the risks of evening exposure to electronic devices could be crucial to preserve general sleep health.
“This applies to both the ongoing pandemic and the future, as electronic technologies will find more and more space in our daily routine,” Ferrara concluded.

Ask your opthalmologist

I had Covid-19 in early May 2021. 
Am I at risk for mucormycosis?

Every person who tests positive for Covid is not at risk for mucormycosis. People who have lowered immunity due to uncontrolled diabetes, have been given steroids, are on cancer treatment, or have had a prolonged ICU stay with oxygen supplementation are 
more at risk. 
Some of the early warning signals are: Swelling of face/ eye, headache, eye pain, drooping of the upper lid, double vision, sudden drop in vision, nasal congestion, bloody nasal discharge. 
There has been a lot of panic of late due to this black fungus epidemic. All red eyes and headaches are not mucor related. At the same time we need to understand that catching mucormycosis early is very important for the successful treatment since it spreads fast. So do not delay in reporting warning signals.

Is it safe to have cataract surgery during the Covid-19 pandemic?
If cataracts are interfering with your vision and you have been advised surgery, you can definitely undergo this procedure. Doctors employ special safety protocols in the Covid era for cataracts. We are NABH accredited, have zero bacteria theatres and follow international guidelines for patient safety through the whole process of examination and surgery.

-Dr Dipan Desai


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Elena Johaness

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