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San Jose

1183 S De Anza Blvd

Ste 50

San Jose, CA 95129

(408) 366-1681

Pleasanton

4299 Rosewood Drive

Unit 105

Pleasanton, CA 94588

(925) 416-1888

Ortho-K / CRT

A viable option for LASIK without surgical risk

  • Appropriate for all ages
  • See better without surgery
  • Has been shown to slow down the progression of nearsightedness from increasing in children and teenagers
  • FDA approved method for overnight contact lens therapy
  • See clearly in the daytime without glasses or contact lenses

This is a revolutionary non-surgical treatment for eyesight improvement. Your vision can improve within the first day after the first night of overnight wear.

How long has Ortho-K been available?

Orthokeratology (Ortho-K) originated in the 1960s. However, due to the lack of sophisticated technology at that time, the results were limited and the procedure was not widely accepted. With today’s advanced technology and lens materials, Ortho-K contact lenses can be custom designed to fit individual corneas in order to achieve much higher success rates. The safety and effectiveness of the results have been confirmed and documented

How does it work?

The concept behind fitting Ortho-K contact lenses is similar to the orthodontic approach which utilizes braces to straighten children’s teeth. A series of specially designed gas permeable contact lenses are custom fitted to your eyes to reshape the corneas.

The lens material is FDA approved for overnight wear, and allows oxygen to pass through the lens. The cornea thus receives sufficient oxygen for the eye to remain healthy. These lenses gently, safely and temporarily flatten and reshape the center of the cornea, without the removal of ant corneal tissue. This method eliminates the myopia, resulting in clear vision throughout the day.

LASIK is a surgical way of accomplishing this effect. It results in irreversible changes to the shape of the cornea by removing corneal tissue.

If you suffer from dry eyes, LASIK surgery may be contra-indicated and can aggravate your condition. Ortho-K can be a good option in this case.

The Optics of Myopia

Myopia occurs when the curvature of the cornea is too steep and/or the length of the eye is too long. These physical parameters cause the light rays entering the eye to fall short of the retina’s photosensitive elements, resulting in a blurry image. A clear image will result only when light comes to a point focus on the retina. Ortho-K contact lenses flatten the cornea, reducing its light refracting power. This brings the light back to a point focus on the retina which reduces the myopia.

Astigmatism

Many patients with myopia have some degree of astigmatism. Astigmatism is a condition in which the eye is shaped more like a football than a basketball.

This oval shape results in blurry vision since light is focused in multiple areas rather than in one location. Ortho-K can reshape the cornea so that it becomes round, reducing the degree of astigmatism.

Clinical Procedure

The starting point for Ortho-K begins by measuring your eyeglass prescription and mapping the shape of your eye with a corneal topographer. Based on the amount of your prescription to be reversed, and the digital map of your eyes, we custom fit your eyes with Ortho-K contact lenses.

Each night, you wear the lenses during sleep for about eight hours. Upon removal of the lenses in the morning, you will be able to see more clearly without any corrective lenses. Your progress will be monitored with office follow-up visits. Once your eyes reach the desired goal, you will need to wear retainer lenses to maintain your correction.

Is Ortho-K comfortable?

The typical problems experienced by daytime contact lens wearers are foreign body sensation, lens awareness and dryness. These are generally not experienced in overnight wear of Ortho-K lenses.

Who is a Candidate?

The majority of nearsighted (myopic) individuals with healthy eyes can benefit from OrthoK, from children as young as seven years to adults.

How long does the Ortho-K treatment take to complete?

Myopia reduction takes place rapidly. Though you may see some improvement in your vision after a day or two of overnight Ortho-K, it can take several weeks for the full effect to be apparent. During this time, your vision will not be as clear as it was with glasses or contacts, and you are likely to notice some glare and halos around lights. It’s possible you may need a temporary pair of eyeglasses for certain tasks, like driving at night, until your vision is fully corrected by the Ortho-K lenses.

Are results permanent?

The results of Ortho-K are permanent with the use of retainer lenses after the best possible vision is obtained. Discontinuing lens wear allows your cornea to gradually regress to their original shape, or close to it.

Why should parents be concerned about their children’s myopia?

Myopia progresses rapidly in children and teenagers. Left untreated, myopia can reach high degrees, increasing the risk of the eye developing vitreous floaters, retinal degeneration and detachment. Ortho-K is the best method available to slow the progression of myopia in children, slowing the rate of increase by 40% – 60% or more.

When should a child begin Ortho-K treatment?

It is better to begin treatment as early as possible. In this way, the myopia can be controlled and prevented from progressing to higher degrees. Research has shown that Ortho-K can stop and/or slow the advancement of myopia.

New Patients Receive 30% OFF Second Pair of Complete Glasses!

Contact Us

Office Hours

San Jose

Monday:

11:00 am-6:00 pm

Tuesday:

11:00 am-6:00 pm

Wednesday:

11:00 am-6:00 pm

Thursday:

11:00 am-6:00 pm

Friday:

11:00 am-6:00 pm

Saturday:

9:00 am-5:00 pm

Sunday:

Closed

Pleasanton

Monday:

11:00 am-6:00 pm

Tuesday:

11:00 am-6:00 pm

Wednesday:

11:00 am-6:00 pm

Thursday:

Closed

Friday:

11:00 am-6:00 pm

Saturday:

10:00 am-6:00 pm

Sunday:

11:00 am-5:00 pm