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A Look Behind Sleeping Eyes

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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. 

SOUTH COAST OPTOMETRY UPDATE – JULY 1, 2020

COVID-19 has been and continues to be an ongoing trial for all of us. During this unforeseen time, we ask kindly for your understanding and compliance to the CDC guidelines. In order to decrease the chances of contraction, we are allowing only one parent to accompany their child during the examination. We appreciate your patience and understanding.

We also want to inform you of the new additional symptoms of COVID-19 that have been added to the previous symptoms as potential indicators of having COVID-19:

New symptoms:             Congestion/runny nose
                                           Nausea
                                           Diarrhea

Previous symptoms:       Headache
                                            Fever/chills
                                            Dry cough
                                            Shortness of breath
                                            Fatigue
                                            Sore throat
                                            Muscle/body aches
                                            New loss of taste or smell

Please be aware that a person does not have to have all of these symptoms but anyone or multiple symptoms can be an indicator of having COVID-19. If you or any family members are experiencing any of the above symptoms, we kindly ask that you reschedule your appointment and contact yourprimary care provider. It is best to reschedule your appointment with us after being symptom-free for14 days.

We at South Coast Optometry truly appreciate each and every one of you as a person and value your trust in us to take care of your most precious eyes. As always, we will continue to closely monitor the COVID-19 situation and communicate any and all changes through our website,
www.SouthCoastOptometry.com. Again, we truly appreciate your understanding and support during this unprecedented time and look forward to seeing everyone soon!

Sincerely,

Dr. Daniel E. Quon, O.D., and The Entire South Coast Optometry Team!!!

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Until further notice, we are only seeing essential care patients. Our hours are:
Monday: 10:00 AM to 7:00PM
Tuesday: Closed
Wednesday: 10:00 AM to 7:00 PM
Thursday: 9:00 AM to 6:00 PM
Friday: 10:00AM to 6:00 PM
Saturday: 9:00 AM to 5:00 PM

We now offer TeleHealth consultations, Call (714) 540-2020 to schedule a time
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