The 2019 National Coffee Drinking Trends report showed that 64 percent of people who participated in the survey said they had drunk coffee the previous day, which is interpreted as daily consumption. This was up from 57 percent in 2016, said the report. 

Even though the U.S. population is drinking more coffee than ever, the nation still only ranked 25th overall in per capita consumption. The people of Finland average 3 times as much coffee consumption as people in the U.S.

So what does all this caffeine intake do to our eyes?

The research is rather sparse and the results are mixed.

Here are some major eye topics that have been investigated:

Glaucoma

One study, published in the journal Investigative Ophthalmology and Visual Science, showed that coffee consumption of more than 3 cups per day compared to abstinence from coffee drinking led to an increased risk for a specific type of Glaucoma called Pseudoexfoliation Glaucoma.

Another analysis of several existing studies by Li,M et al demonstrated a tendency to have […]

Ocular allergies are among the most common eye conditions to hit people of all ages.

Though typically worse in the seasons of Spring and Summer, some people suffer with allergies all year. This is especially true for people who have allergies to pet dander, mold, dust mites, and other common allergens that tend to linger throughout the year.

The hallmark sign of ocular allergies is itching.

While itching can be a symptom of other eye conditions, the likelihood that there is at least some allergy component to the condition is quite high. This seems to be particularly true when the itching occurs mainly in the inner corner of the eyes. This signals that the condition is allergy-related, whereas itching along the eyelid margin suggests other conditions.

Allergy itching is usually accompanied by redness, tearing, and string-like mucus discharge from the eye. When accompanied by rhinitis, sinusitis, and sneezing, people can truly suffer from their allergies – especially as it relates to the eye.

The good news is there are numerous avenues for relief from this annoying […]

What does blood in the back of the eye signify, anyway?

It could be a retinal vein occlusion, an ocular disorder that can occur in older people when the blood vessels to the retina are blocked.

The retina is the back part of the eye where light focuses and transmits images to the brain. Blockage of the veins in the retina can cause sudden vision loss. The severity of vision loss depends on where the blockage is located.

Blockage at smaller branches in the retinal vein is referred to as branch retinal vein occlusion (BRVO).  Vision loss in BRVO is usually less severe, and sometimes just parts of the vision is blurry.  Blockage at the main retinal vein of the eye is referred to as central retinal vein occlusion (CRVO) and results in more serious vision loss. 

Sometimes blockage of the retinal veins can lead to abnormal new blood vessels developing on the surface of the iris (the colored part of your eye) or the retina. This is a late complication of retinal vein blockage and can occur […]

More middle-aged and older adults are wearing soft contacts than ever.

And one of the biggest reasons they stop wearing contacts is the difficulty they face reading with their contacts after presbyopia begins to set in around the early 40’s.

Presbyopia is the diminished ability of the natural lens in our eyes to focus up on close objects. It begins with the occasional medicine bottle being a struggle to read and then over time more and more gets blurry. It can be very frustrating to stare at something up close and have it be blurry regardless of what you do.

So there are three basic choices a contact lens wearer can do to aid their reading while still wearing contact lenses.

Reading Glasses

Initially, the use of an over-the-counter reader or prescription reading glass for occasional use works well for people in the early stages of presbyopia. They are worn over distance contact lenses so there is little adjustment and vision is clear near and far. However, they need to be with you, not left in […]

Motherhood…the sheer sound of it brings enduring memories. A mother’s touch, her voice, her cooking, and the smile of approval in her eyes. Science has proven that there is a transference of emotion and programming from birth and infancy between a mother and her child–a type of communication, if you will, that occurs when the infant looks into its mother’s eyes. So what is this programming? How does it work and what effect does it have on the life of the child? What happens if it never happened to the infant? What happens if the mother is blind?

The gaze into a mother’s eyes brings security and well being to the child. When she gazes at another person, it makes the infant look at what she is gazing at, and introduces the infant to others in the world. This is known as a triadic exchange. So now the baby's world is no longer just one person–its mother–but also includes third parties, thereby increasing social skills and interaction.

Interestingly, if a mother is blind, it does not […]

Parkinson’s disease is a progressive degenerative condition of the neurological system.  The majority of Parkinson’s effects are on movement, often starting off very slowly and subtly. One of the earliest symptoms is a slight tremor in one or both hands. Other early symptoms include a lack of facial expression and decreased blinking of the eyes, so it looks like the person is always staring.  

The next stage usually results in difficulty with initiating movement, especially walking.  It frequently looks like it takes a tremendous concentrated effort to initiate walking and the steps often start off very small with a shuffling of the feet.  At the same time, the disease stiffens the muscles of the arms so that when the person is walking there is a noticeable decrease in the swinging of the arms. Speech becomes much softer and writing becomes more of an effort, with handwriting getting smaller and smaller as the disease progresses.

Parkinson’s can also affect your visual performance, mainly in two parts of your eyes: the tear film and the ocular muscles.

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Have you ever felt a twitching sensation in your eye? Did it feel like everyone was looking at you because of it? Were you worried that it was the beginning of a big problem?

Relax–it’s not likely to be a big deal. Most of the time it is not even visible to other people.

It's reassuring to know it’s almost never your actual eyeball that is twitching; it’s your eyelid muscle. Actual eye twitching is fairly rare and your vision would be pretty blurry if that's what were really happening.

The eyelid has a muscle in it that closes the eyelid and that muscle has a very high concentration of innervation. Because of that dense nerve tissue in the eyelid, anything that makes your nervous system a little hyped up or off kilter can result in the eyelid twitching.

What are some of the risk factors for eyelid twitching?

Fatigue

Not getting enough sleep can result in your nervous system not performing at its best and one of the results may include eyelid twitching. If you […]

A wrinkle on the retina — which is also known as an epiretinal membrane (ERM) or a macular pucker — is a thin, translucent tissue that develops on the surface of the retina.

The retina is the inner layer that lines the inside of the back of the eye and is responsible for converting the light image into an electrical impulse that is then transmitted to the brain. An epiretinal membrane that forms on the retina goes unnoticed by the patient many times, and is only noticed during a dilated eye exam by an eye doctor.

Epiretinal membranes can become problematic if they are overlying the macula, which is the part of the retina that is used for sharp central vision. When they become problematic they can cause distortion of your vision, causing objects that are normally straight to look wavy or crooked.

Causes of a wrinkle on the retina

The most common cause is age-related due to a posterior vitreous detachment, which is the separation of the vitreous gel from the retina. The vitreous gel […]

Demodex folliculorum — often just called demodex — is a mite that occurs naturally on many people's faces and resides in hair follicles, particularly the follicles of eyelashes. Most of the time, these mites cause no problems whatsoever. However, sometimes an infestation can become particularly parasitic, resulting in unhealthy eyelid margins and leading to problems.  Those problems as a group are called blepharitis.  Blepharitis can be caused by caused by several things, including allergies, bacterial overgrowth, Rosacea and also by demodex.

Often, diagnosis of mite infestation by your eye doctor can be difficult.  The symptoms can mimic other causes of blepharitis, which is one of the most prevalent diseases we see.

The most common sign of a demodex infestation is a cylindrical cuff or "sleeve" at the base of the eyelash. Symptoms include redness, itching, burning, dry eyes and general discomfort in the eyelid.

The probability of demodex infestation increases gradually with age, with nearly 100% of people having demodex in their eyelashes after age 70.  If there are no symptoms present, nothing needs to […]

Here are 11 bad contact lens habits we eye doctors often see–

#1 Sleeping in your contacts.

This is the No. 1 risk factor for corneal ulcers, which can lead to severe vision loss and the need for a corneal transplant. Your cornea needs oxygen from the atmosphere because it has no blood vessels. The cornea is already somewhat deprived of oxygen when you have your eyes closed all night, and adding a contact on top of that stresses the cornea out because of the lack of oxygen. You don’t need to see when you are sleeping!  TAKE YOUR CONTACTS OUT!  I promise your dreams will still look the same.

#2 Swimming in your contacts.

Salt, fresh, or pool water all have their individual issues with bacteria, amoeba, chemicals, etc., that can leach into your contacts. If you end up wearing them in the water, then take them out as soon as you are done and clean and disinfect them.

#3 Using tap water to clean contacts. […]