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Before Glaucoma After Glaucoma

Cataracts

A cataract is an opacity that develops in the crystalline lens of the eye or in its envelope. Early on in the development of age-related cataract the power of the crystalline lens may be increased, causing near-sightedness (myopia), and the gradual yellowing and opacification of the lens may reduce the perception of blue colours. Cataracts typically progress slowly to cause vision loss and are potentially blinding if untreated. Moreover, with time the cataract cortex liquefies to form a milky white fluid in a Morgagnian Cataract, and can cause severe inflammation if the lens capsule ruptures and leaks.  Untreated, the cataract can cause phacomorphic glaucoma. Very advanced cataracts with weak zonules are liable to dislocation anteriorly or posteriorly. Such spontaneous posterior dislocations (akin to the earliest surgical procedure of couching) in ancient times were regarded as a blessing from the heavens, because it restored some perception of light in the bilaterally affected patients.

Causes

Cataracts develop from a variety of reasons, including long-term ultraviolet exposure, exposure to radiation, secondary effects of diseases like diabetes, and advanced age.

Epidemiology

Cataract, or opacity of the lens of the eye, is the most common and most easily correctable cause of blindness in the world.

Surgery

Surgery

The most effective and common treatment is to surgically remove the cloudy lens. There are two types of surgery used to remove cataracts -  ECCE and ICCE.

Sunglasses

Prevention

Although cataracts have no scientifically proven prevention,  wearing ultraviolet-protecting sunglasses may slow their development of cataracts.

Recent Research

Although statins are known for their ability to lower lipids, they are also believed to have antioxidant qualities.

Cataracts Information

Causes of Cataracts

Cataracts develop from a variety of reasons, including long-term ultraviolet exposure, exposure to radiation, secondary effects of diseases such as diabetes, and advanced age; they are usually a result of denaturation of lens proteins.  Genetic factors are often a cause of congenital cataracts and positive family history may also play a role in predisposing someone to cataracts at an earlier age, a phenomenon of “anticipation” in pre-senile cataracts.  Cataracts may also be produced by eye injury or physical trauma.  A study among Icelandair pilots showed commercial airline pilots as three times more likely to develop cataracts than people with non-flying jobs.  This is thought to be caused by excessive exposure to radiation coming from outer space.  Cataracts are also unusually common in persons exposed to infrared radiation, such as glassblowers who suffer from “exfoliation syndrome”.  Exposure to microwave radiation can cause cataracts.

Cataracts may be partial or complete, stationary or progressive, hard or soft.

Some drugs can induce cataract development, such as Corticosteroids and Ezetimibe

There are various types of cataracts, e.g. nuclear, cortical, mature, hypermature.  Cataracts are also classified by their location, e.g. posterior (classically due to steroid use) and anterior (common senile) cataract related to aging.

Epidemiology - Cataracts

Cataract, or opacity of the lens of the eye, is the most common and most easily correctable cause of blindness in the world. In the United States, age-related lenticular changes have been reported in 42% of those between the ages of 52 to 64, 60% of those between the ages 65 and 74, and 91% of those between the ages of 75 and 85.

Surgery

Cataract Surgery

Cataract surgery, using a temporal approach phacoemulsification probe (in right hand) and “chopper” (in left hand) being done under operating microscope at a Navy medical center.

The most effective and common treatment is to surgically remove the cloudy lens.  There are two types of surgery that can be used to remove cataracts: extra-capsular (extracapsular cataract extraction, or ECCE) and intra-capsular (intracapsular cataract extraction, or ICCE).

Extra-capsular (ECCE) surgery consists of removing the lens but leaving the majority of the lens capsule intact.  High frequency sound waves (phacoemulsification) are sometimes used to break up the lens before extraction.

Intra-capsular (ICCE) surgery involves removing the entire lens of the eye, including the lens capsule, but it is rarely performed in modern practice.  In either extra-capsular surgery or intra-capsular surgery, the cataractous lens is removed and replaced with a plastic lens (an intraocular lens implant) which stays in the eye permanently.

Cataract operations are usually performed using a local anaesthetic and the patient is allowed to go home the same day.  Recent improvements in intraocular technology now allow cataract patients to choose a multifocal lens to create a visual environment in which they are less dependent on glasses.  Under some medical systems multifocal lenses cost extra.  Traditional intraocular lenses are monofocal.

Complications after cataract surgery, including endophthalmitis, posterior capsular opacification and retinal detachment, are possible.

In ICCE there is the issue of the Jack in the box phenomenon where the patient has to wear aphakic glasses – alternatives include contact lenses but these can prove to be high maintenance, particularly in dusty areas.

Sunglasses

Prevention of Cataracts

Although cataracts have no scientifically proven prevention, it is sometimes said that wearing ultraviolet-protecting sunglasses may slow the development of cataracts.[citation needed][10] Regular intake of antioxidants (such as vitamin C and E) is theoretically helpful, but this has not been proven.

Recent Cataract Research

Canaloplasty is an advanced, nonpenetrating procedure designed to enhance and restore the eye’s natural drainage system to provide sustained reduction of IOP. Canaloplasty utilizes breakthrough microcatheter technology in a simple and minimally invasive procedure.  To perform a canaloplasty, a doctor will create a tiny incision to gain access to a canal in the eye. A microcatheter will circumnavigate the canal around the iris, enlarging the main drainage channel and its smaller collector channels through the injection of a sterile, gel-like material called viscoelastic. The catheter is then removed and a suture is placed within the canal and tightened. By opening the canal, the pressure inside the eye will be relieved.

Office Hours

M-TH: 7am - 5:30pm | Fri: 7am - Noon
Sat & Sun: Closed

Closed for lunch from Noon to 12:45pm

2021 Holiday Hours

New Years Day -Closed
Memorial Day - Closed
July 5th - Closed
Labor Day - Closed
November 25 - 26 - Closed
December 27 - Closed

Your Appointment

We strive to keep patient “wait times” to a minimum.  With that in mind, we see patients by appointment only.  We do often have a last-minute cancellation which does accommodate same day appointments.

You can also reduce your wait by using the Patient Forms available online.  Open the form you wish to use and print a copy.  Fill out the form and remember to bring them with you for your appointment.

817-281-3386

7728 Mid Cities Blvd

North Richland Hills, TX 76180

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