expert type icon EXPERT

Dr. Harry Ls Knopf, MD

Ophthalmologist

Dr. Harry Knopf is an ophthalmologist practicing in Saint Louis, MO. Dr. Knopf specializes in eye and vision care. As an ophthalmologist, Dr. Knopf can practice medicine as well as surgery. Opthalmologists can perform surgeries because they have their medical degrees along with at least eight years of additional training. Dr. Knopf can diagnose and treat diseases, perform eye operations and prescribe eye glasses and contacts. Ophthalmologists can also specialize even further in a specific area of eye care.
52 years Experience
Dr. Harry Ls Knopf, MD
  • Saint Louis, MO
  • Harvard Med Sch, Boston Ma
  • Accepting new patients

Can optometrists treat glaucoma, or should I go to an ophthalmologist?

In most cases, ophthalmologists are better trained.

Headaches from glasses. Is it serious?

Most common reason is that the glasses are incorrect. Get another exam.

Can an ophthalmologist write medication prescriptions?

Yes. Ophthalmologists are licensed MDs. Optometrists and opticians are not MDs.

Can a cataract recur in a person?

No. Cataract changes occur in tissue called “lens” inside the eye. If the entire lens was removed, it cannot grow back. Another cause for blurred vision needs to be found. If READ MORE
No. Cataract changes occur in tissue called “lens” inside the eye. If the entire lens was removed, it cannot grow back. Another cause for blurred vision needs to be found. If the lens was only partly removed, the the remaining membranes may become opaque.

How can I avoid dry eye disease?

Sorry, but there are no fixed answers. It is easier to describe things you can do to treat dry eyes. If it is a genetic connection, there are no “fixes.”

My left eye has been constantly watering. What can I do about it?

Watering has a number of causes. You need an exam by an ophthalmologist to determine what needs to be done.

I have a stye on the inner side of my eyelid. Is it a problem?

It never hurts to have someone look at it.

When should I get my daughter's first eye checkup done?

A pre-school checkup is always a good idea. If she is cooperative, you may take her anytime now.

Why do I keep getting a stye?

Frequent styes may be due to a skin condition called Acne Rosacea. Check with a dermatologist.

My mother is highly diabetic and is not able to see very clearly. Could it be the onset of glaucoma?

Diabetes can disturb vision in several ways. Please bring your mother to an ophthalmologist for a full evaluation. Diabetes remains a leading cause of blindness but it can be prevent0ed READ MORE
Diabetes can disturb vision in several ways. Please bring your mother to an ophthalmologist for a full evaluation. Diabetes remains a leading cause of blindness but it can be prevent0ed with treatment. Please bring her!

Can doing eye exercises help my eyes?

There are no scientific studies that I know of to support the idea that myopia can be reversed by exercise.

What is the reason for constant watering of the eyes?

Eyes watering: A patient may have watery eyes for several reasons: -Excessive tearing due to inflammation or irritation -Poor drainage of tears due to obstruction or poor READ MORE
Eyes watering:
A patient may have watery eyes for several reasons:

-Excessive tearing due to inflammation or irritation

-Poor drainage of tears due to obstruction or poor lid apposition to the eye

I suggest you seek help from a subspecialist in oculo plastics.

Is there a way to treat cataract without surgery?

There are no scientifically proven methods other than surgery to treat cataract that I know of. Cataract surgery is usually safe and effective in this modern era. Diabetes increases READ MORE
There are no scientifically proven methods other than surgery to treat cataract that I know of. Cataract surgery is usually safe and effective in this modern era. Diabetes increases the risks, but only minimally. If he were my father and he needed surgery to see again, I would do it. Choose the best surgeon by asking others who have had surgery and then check his or her credentials.

Is stopping restasis considered to be dangerous?

So far as I know, there are no dangers to stopping Restasis. The eye may get redder, since Res. is an anti-inflammatory. On the other hand, if you are allergic to Res., it may READ MORE
So far as I know, there are no dangers to stopping Restasis. The eye may get redder, since Res. is an anti-inflammatory.
On the other hand, if you are allergic to Res., it may make your eye redder when you restart it.

Can diabetes cause reading difficulties?

The answer in general is yes, but your Q is so general, I suggest you take your mother to an ophthalmologist for evaluation.

Anything to watch out for when using glaucoma eye drops?

Lumigan has few side effects, but one is notable: it can darken your eyelids, eyelashes, and your iris color (mostly in hazel or light brown eyes}. It may make the whites of your READ MORE
Lumigan has few side effects, but one is notable: it can darken your eyelids, eyelashes, and
your iris color (mostly in hazel or light brown eyes}. It may make the whites of your eyes red, but this effect usually improves with time. If redness persists, it may indicate an allergic reaction, especially if itching accompanies the redness.

Diabetes and eye health

Diabetes is one of the leading causes of blindness. Although most Type2 diabetics will not go blind, there is no test for uncovering the potential for blindness except a dilated READ MORE
Diabetes is one of the leading causes of blindness. Although most Type2 diabetics will not go blind, there is no test for uncovering the potential for blindness except a dilated exam by a trained ophthalmologist or optometrist 9 not in all states). Your doctor is correct: SEE an Ophlalmologist ASAP.

Why are my eyes sore after contacts?

In my experience, the two most common causes of pain after cl wear are: 1. Poorly fitting lenses, usually too 'Tight' 2 Allergy to contact lens storage solution - usually READ MORE
In my experience, the two most common causes of pain after cl wear are:

1. Poorly fitting lenses, usually too 'Tight'

2 Allergy to contact lens storage solution - usually burns on insertion of lenses also

HK