Kendall Optical Center | Eye Health
Kendall Optical is a full service eye care center, which provides eye exams, prescription glasses and contact lenses from kids to adults in Miami, FL. We accept most insurances and treat many common eye problems.
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Eye Health

Learn How to Keep Your Vision Strong

Your Guide to Eye Health

Do you include eye care when considering annual health checkups? If you are seeing clearly, it is easy to overlook routine eye care — but it is still important. Regular eye exams can give your eye doctor a chance to help you correct or adapt to vision changes, as well as detect eye problems at the earliest stage.


It is also important to think about common vision problems as you age, from difficulty reading small print to cataracts and glaucoma. Knowing what is normal — and what is not — can help you stay healthy for years to come.



Eye Anatomy

The eye is a slightly asymmetrical globe, about an inch in diameter. The front part of the eye (the part you see in the mirror) includes the:


  • Iris: The pigmented area of your eye
  • Cornea: A clear dome over the iris
  • Pupil: A black, circular opening in that lets light in
  • Sclera: The white area of your eye

Just behind the iris and pupil lies the lens, which helps to focus light on the back of the eye. Light projects through the pupil and the lens to the back of the eye.


The inside lining of the eye is covered by special light-sensing cells that are collectively called the retina. The retina converts light into electrical impulses. Within the retina is the macula, a small extra-sensitive area that gives central, fine detailed vision. Finally, behind the eye is the optic nerve, which carries these impulses to the brain.

What Is Your Eye Doctor Checking For?


A healthy lens focuses light into a sharp, clear image on the retina, which captures the image like film in a camera. As we age, protein builds up in the lens, making it cloudy and scattering rays of light which can result in blurred vision, changes in color vision, and glare.


By age 80, more than half of us will have had a cataract, and with it, a difficult time reading, driving, and seeing at night. Diabetes, smoking, or too much time in the sun raises your risk. Surgery, however, can replace the cloudy lens with a new artificial one, which will correct any distortions.


Symptoms may include redness, itching, burning or discharge. Sometimes known as pinkeye, conjunctivitis is an irritation that can be caused by a virus, bacteria, irritant, or allergy.


If itching is your main symptom, an allergy is a likely cause. Otherwise, we can help you determine if your pinkeye is viral or bacterial, before providing treatment. Just remember that both bacterial and viral conjunctivitis are very contagious, so wash your hands often while you wait for it to clear up.

Dry Eye Syndrome

If your eye cannot lubricate itself sufficiently due to dry air, aging, or other health conditions, your eyes can become painful and irritated. For people with mild cases of dry eye, occasionally using eyedrops labeled artificial tears may alleviate the symptoms. If it is a more severe problem, you may need other medications or a procedure to fix it.

Diabetic Retinopathy

Type 1 and Type 2 diabetes can cause partial vision loss and eventually lead to blindness. The damage involves tiny blood vessels in the retina. It can often be treated, but don’t wait for symptoms. By the time they happen — blurry vision, spots, shadows, or pain — the disease may be too severe.


People with diabetes need annual dilated eye exams. Sometimes these visits need to be more frequent depending on the severity of the disease. Additionally, the best prevention is to keep your blood sugar in check.


Most of the time, glaucoma has no symptoms, yet it quietly destroys your vision. Glaucoma occurs when the fluid inside of the eye is produced at a faster rate than it is drained. This buildup raises the pressure inside of the eye, and damages the optic nerve at the back. The optic nerve consists of a bundle of 1 million nerve fibers which carries information to your brain.


Without treatment, that increased pressure can lead to total blindness. In glaucoma, there is too much fluid build up internally. When detected, glaucoma can be treated with medications or surgery.

Eye with Glaucoma

Macular Degeneration

Age-related macular degeneration (AMD) damages and then destroys your central vision, which can make it hard to read or write. Symptoms may include a central blurry spot or straight lines that appear wavy. You are more likely to have it if you are older than 60, smoke, have high blood pressure, are obese, are female, or have a family history of the condition. It is important to see your eye doctor regularly to check for AMD, as prompt treatment can help slow vision loss.

Refractive Errors

This refers to nearsightedness, farsightedness, and astigmatism, which can be corrected with eyeglasses, contact lenses or refractive surgery.


When you are nearsighted, things in the distance look blurry. Doctors call it myopia. You are more likely to be myopic if your parents have the same condition, or you do a lot of close-up reading. Nearsightedness can make it harder to drive, play sports, or see a blackboard or TV.


Most people are born with mild farsightedness and outgrow it in childhood. This condition is referred to as hyperopia medically. When it persists, you may see distant objects well, but books, knitting, and other close objects are a blur. This problem runs in families. Symptoms include trouble with reading, blurry vision at night, eyestrain, and headaches. As we age, farsightedness begins to affect distance vision as well.


If you have astigmatism in one or both eyes, your vision may be out of focus at any distance. It happens when the cornea, the clear “window” that covers the front of the eye, is misshapen. Light rays can scatter to different points on the retina, rather than focus on a single point. Glasses or contact lenses may correct it. Surgery can be another option.