Fixing Your Astigmatism and Your Cataracts

AstigmatismMost of us have some degree of astigmatism. Astigmatism is the case where our eyeballs are more oval shaped than round. This creates focusing problems at certain distances.

And most of us will develop cataracts at some point after the age of 50. Cataracts are caused by a buildup of proteins in the lens of the eye, creating clouding that gets progressively worse. If left untreated, cataracts can cause blindness in an eye, but that’s silly because the surgery with the team at Central Valley Eye Medical Group is so successful and so easy.

Lens Replacements Improve

As replacement lenses (called intraocular lenses or IOLs) for cataracts have advanced technologically, patients have more and more options. First, simple monofocal lenses, where patients would pick the focal range they wanted — either near or far — and correct the other range with glasses, were the only choice.

In 2005, the first multifocal IOLs came to market. This type of IOL provides correction for both near and distance vision, much like your eyes normally would Both near and far objects can be in focus at the same time, so there is an adjustment period, but your brain learns to select the visual information it needs to form an image of either near or distant objects. Newer multifocal lenses also correct for presbyopia, the condition that hits most people after age 40, where their near and intermediate vision usually needs correction with reading glasses.

IOLs and astigmatism

But in 2006, “toric” lenses were introduced. Toric IOLs have different powers in different meridians of the lens to correct the asymmetric power of the eye, the tenets of astigmatism. As with toric soft contact lenses for astigmatism, where each lens has a mark that shows where the orientation of the lens needs to be placed onto the eyeball, toric IOLs have special markers on the peripheral parts of the lens that show your Central Valley surgeon the orientation of the astigmatism correction in the lens. Once the IOL is implanted in the eye, the surgeon rotates the lens to align the lens to match astigmatism.

Toric IOLs are available in both monofocal and multifocal options. Most patients would opt for multifocal unless they have the need for excellent distance vision (occupations such as airline pilots). Toric multifocal IOLs usually will eliminate the need for reading glasses.

Do you have the telltale clouding of cataracts? It may be time to consider cataract surgery at Central Valley Eye Medical Group. Call us at (800) 244-9907 to schedule your appointment.

Posted in: Astigmatism


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Dear Friends,

We at Central Valley Eye hope you and your families are well. During these uncertain times, we are taking all necessary precautions to keep patients and staff healthy as COVID-19 infections continue to rise. We are following CDC and American Academy of Ophthalmology guidelines, including extra diligent cleaning, and disinfecting around the office. Our waiting rooms have been reconfigured to allow more distance between chairs, and we are turning away all non-urgent patients who are symptomatic with cough or fever.

In keeping with government and institutional guidelines, as well as to promote the practice of "staying at home," we are implementing new restrictions. Starting March 20th, we will be limiting our clinic only to patients with eye conditions that could permanently threaten vision if not addressed within two months. This means that many appointments will need to be rescheduled. Additionally, some of our office locations may be closed on certain days, as patient volumes are expected to decrease significantly. If you are unsure whether to come in for your visit, please call us.

The clinic is also establishing a telemedicine service to address eye problems that are less urgent, which can be managed over the phone by a physician.

The doctors at Central Valley Eye will not be performing any non-urgent surgeries until further notice. Our surgery coordinators will be contacting patients to reschedule the surgeries that need to be postponed.

If you have any questions, please do not hesitate to contact us at 209-952-3700.

Warmest regards,

Brandy Simpson
Practice Manager
Central Valley Eye Medical Group, Inc.