The Four Stages of Diabetic Retinopathy

Dr. Anthony Roberts has more than a decade of experience as an eye physician at Shady Grove Ophthalmology in Rockville, Maryland. In this position, Dr. Anthony Roberts performs a variety of procedures, including Lasik. He also treats such conditions as diabetic retinopathy.

Individuals with diabetic retinopathy can experience four unique stages of the disease if the condition is not effectively treated by an ophthalmologist.

During the disease’s mild non-proliferative stage, a person will experience microaneurysms, or small, balloon-shaped areas of swelling throughout the retina’s blood vessels.

In the second, more moderate stage of diabetic retinopathy, important blood vessels responsible for keeping the retina in proper health become blocked and ineffective.

As the third stage–referred to as severe non-proliferative retinopathy–sets in, more and more blood vessels surrounding the retina become blocked. Some of these vessels are responsible for signaling the need for new blood vessels to be generated, further debilitating the retina as the area becomes crowded with unhealthy and abnormally placed blood vessels.

In the disease’s advanced stage–referred to as proliferative retinopathy–the retina begins creating new blood vessels, but they are extremely fragile. Any vessel that leaks blood into the retina can lead to significant visual impairments, including blindness.


2014 Annual Meeting of the American Academy of Ophthalmology

The founder of Shady Grove Ophthalmology, Dr. Anthony Roberts has nearly two decades’ experience in refractive surgery, such as Lasik, cataract extraction, PRK, and refractive lens exchange. Dr. Anthony Roberts maintains affiliations with professional organizations such as the American Academy of Ophthalmology.

From October 18-21, 2014, the American Academy of Ophthalmology will host its annual meeting in Chicago at McCormick Place. For this year’s meeting, the organization has joined with the European Society of Ophthalmology to offer attendees the opportunity to connect with, and learn from, their international colleagues.

In addition to the networking opportunities, the event will include numerous presentations and educational offerings, such as hands-on labs, small-group sessions, and talks by distinguished ophthalmologists. Instructional courses and symposia will address topics such as medical and surgical management of glaucoma, intraoperative biometry, diagnosis and management of corneal endothelial diseases, and the differences between ophthalmology in the United States and abroad.

Femtosecond Lasers – An Overview

A graduate of University of Maryland School of Medicine, Dr. Anthony Roberts joined Shady Grove Ophthalmology in 2002. Dr. Anthony Roberts utilizes Lasik, multifocal intraocular lenses, and femtosecond lasers to diagnose and treat various eye diseases.

Even as laser cataract surgeries become more advanced, physicians are pushing for greater efficiency and accuracy. Scientists have categorized lasers to better understand and describe their speeds. The femtosecond laser falls in the “ultra-fast” category of lasers; it emits optical pulses measured in femtoseconds, one of the fastest units of time available. For perspective, there are one quadrillion (1,000,000,000,000,000) femtoseconds in a single second.

More and more ophthalmologists are using femtosecond lasers for cataract surgeries, which require surgical incisions in the cornea. Femtosecond lasers offer greater accuracy and steadiness than incisions made by hand. This translates to lower risk and facilitates self-sealing of the incision, which reduces the risk of infection following cataract surgery.

Causes of Cataracts

An accomplished ophthalmologist and surgeon, Dr. Anthony Roberts has dedicated much of his career to the treatment of cataracts. Dr. Anthony Roberts has addressed multiple cataract cases through the use of lens replacement and laser technologies.

While often commonly considered a disease of old age, a cataract can develop at any time and from number of contributing factors. All cataracts are characterized by a reduction in the transparency of the eye’s lens, although different types of cataracts affect different parts of the lens. As common wisdom holds, a senile or age-related cataract stands out as the most common type. This variety of cataract typically affects the lens’ interior section, clinically known as the nucleus.

By contrast, congenital cataracts are present at birth. These may be caused by a maternal infection during gestation, a genetic condition, or a developmental disorder. Young children may also develop cataracts due to a childhood or inherited condition, such as dermatitis or hyperthyroidism. Some physicians refer to these as congenital cataracts, depending on the cause. Children of all ages, as well as adults, may also develop cataracts after an injury to the eye. Finally, patients of any age are susceptible to secondary cataracts. These stem from illnesses such as diabetes or may arise following exposure to radiation, steroid drugs, or ultraviolet light.

Multifocal Lenses – How They Work

Dr. Anthony Roberts earned his doctor of medicine from University of Maryland School of Medicine. Skilled in Lasik as well as other ophthalmological procedures, he joined Shady Grove Ophthalmology in 2002, where he continues to treat patients today. Dr. Anthony Roberts employs state-of-the-art advancements such as multifocal intraocular lenses to treat eye disease.

Anyone with reading glasses knows that taking glasses on and off just to read a dinner menu or e-mail is inconvenient. One of the most advanced lens treatments, multifocal intraocular lenses (or IOLs for short) are implants designed to help visually impaired patients see at varying distances using points of reference.

Bifocal lenses allow the patient to view near and distant objects by looking through two different parts of the lenses: the top to view faraway objects and the bottom to see closer objects. Patients who receive multifocal IOLs can look at any object, at any distance, and the IOL readjusts automatically. After conquering a slight learning curve, such as learning how far to hold magazines and books from the eyes for optimum viewing distance, patients can enjoy reading and driving without glasses.

Dr. Anthony Roberts: Risk Factors for Glaucoma

Dr. Anthony Roberts, LASIK specialist and founder of Shady Grove Ophthalmology, has conducted glaucoma testing on a broad range of patients. A member of the American Academy of Ophthalmology, Dr. Anthony Roberts remains committed to using the latest in diagnostic technology and procedures.

Caused by fluid buildup in the eyeball, glaucoma leads to increased pressure in the eye. Left untreated, this increased pressure can damage the optic nerve and cause permanent vision loss. To guard against this devastating result, ophthalmologists test for glaucoma at regular intervals as part of a patient’s complete eye exam. The doctor conducts these with increasing frequency as a patient ages.

A routine glaucoma check involves testing the pressure of the inner eye as well as the color and shape of the optic nerve. Neither procedure is invasive. Pressure checks, or tonometry, begin when the doctor numbs the eye with drops. Then, the doctor applies pressure to the eye with a small device or puff of pressurized air.

To examine the optic nerve, an ophthalmologist will apply a different kind of drop. These drops dilate the pupil to enable the doctor to look through the pupil more easily. When the drop has taken effect, the doctor looks inside the eye with a lighted device that magnifies the optic nerve. If the nerve appears unusual in any way, the ophthalmologist may order additional testing.

Dr. Anthony Roberts: How LASIK Eye Surgery Works

Operating from Shady Grove Ophthalmology in Rockville, Maryland, Dr. Anthony Roberts has performed more than 50,000 refractive procedures. He earned his MD from the University of Maryland’s School of Medicine.

LASIK, which stands for laser assisted in situ keratomileusis, is a procedure in which a surgeon uses a cutting device known as a microkeratome to create a hinged opening on the surface of the cornea. The surgeon removes tissue from the inner layer of the cornea with a laser and replaces the outer flap when finished. Some patients report a faint burning-hair smell as the laser eliminates tissue. The surgery often requires less than 30 minutes.

Following LASIK surgery, 80 percent of patients can see well enough to eliminate contact lenses or glasses from their day-to-day lives. While the surgery can be used to address myopia, hyperopia, astigmatism, and presbyopia, patients who experience the best LASIK results are those with low-grade myopia.