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Home » What’s New » A Look Behind Sleeping Eyes

A Look Behind Sleeping Eyes

Have you ever wondered what your eyes do when you finally close them after a long day of visual processing and stimulation? Let's take a closer look at what happens behind your closed lids when your head hits the pillow.

Firstly, once your eyes are closed, they do continue to function in a limited fashion with the ability to sense light. This explains why a bright light being switched on or the sun rising in the morning can wake you up, while lying in a dark room will help you sleep.

During sleep your eyes don't send visual data or information about images to your brain. In fact, it takes almost 30 seconds for the connection between your eyes and your brain to reboot when you wake up. This is why it's often difficult to see complete and clear images when you first wake up.

Our bodies pass through five phases of sleep known as stages 1, 2, 3, 4, (which together are called Non-REM) and REM (rapid eye movement) sleep. During a typical sleep cycle, you progress from stage 1 to 4 then REM and then start over.  Almost 50 percent of our total sleep time is spent in stage 2 sleep, while 20 percent is spent in REM sleep, and the remaining 30 percent in the other stages. During stage 1, your eyes roll slowly, opening and closing slightly; however the eyes are then still from stages 2-4 when sleep is deeper.

During REM sleep, your eyes move around rapidly in a range of directions, but don’t send any visual information to your brain. Scientists have discovered that during REM sleep the visual cortex of the brain, which is responsible for processing visual data, is active. However, this activity serves part of a memory forming or reinforcing function which aims to consolidate your memory with experiences from the day, as opposed to processing visual information that you see. This is also the time when most people dream.

As for your eyelids, they cover your eyes and function as a shield protecting them from light. They also help preserve moisture on the cornea and prevent your eyes from drying out while your body is resting.

In short, while your eyes do move around during sleep, they are not actively processing visual imagery. Closing your eyelids and sleeping essentially gives your eyes a break. Shut-eye helps recharge your eyes, preparing them to help you see the next day. 

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In every office we continue to strictly adhere to hygiene and infection control protocols as we always have. We have reinforced staff training in basic and advanced hygiene and confirmed our cleaning and disinfection techniques are consistent with CDC recommendations.

We have increased our surveillance of patients who have scheduled appointments. All patient who receive patient appointment reminders are advised of the following:

If you returned from outside the U.S or visited an area defined by the CDC as an area of high risk IN THE LAST 14 DAYS, OR

If you had direct contact with an individual with confirmed coronavirus (COVID-19) IN THE LAST 14 DAYS, OR,

If you had direct contact with a person who is currently being quarantined for coronavirus (COVID-19) exposure IN THE LAST 14 DAYS, OR,

If you felt feverish and had a cough in the last 24 hours, please call our office to reschedule your appointment.

We are also confirming all appointments with a live phone call to further enhance our ability to identify patients at risk.

In addition, at the entrance of each office location we have posted a sign in English and Spanish repeating the message above.

Our computer based check in system once again queries each patient with the above questions.

All patients entering the office will have their body temperature measured with non-contact thermometers.

To the extent possible we will attempt to limit close contact between patients in the reception area by suggesting seating arrangements that avoid close contact.

Any patient who enters the office and is identified as at risk will be immediately masked and isolated while we contact the NJ Department of Health for further guidance. Our staff has been educated on this procedure and each office is supplied with appropriate personal protective equipment (PPE) for our staff.

Our goal is to be diligent in protecting patients, doctors and staff from unnecessary exposure while continuing to provide them medical care they need.

This is a rapidly evolving situation and we will change our processes as necessary. We encourage you to adopt similar procedures in your own office and to stay well informed of recommendations from the CDC with respect to the COVID-19 Virus.