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Limbal RGP lenses on Keratoconus – case 24
Fantasee Incorporated 3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
A 28 year-old female patient with history of recurrent keratitis from wearing disposable contact lenses on a daily basis has come to seek for medical attention. The patient was then diagnosed with keratoconus with corneal topography. The steepest curve is 49D on the right eye while 48.3D on the left respectively (Figure 1 and 2). A brief profile of the patient is provided below:   Right (OD) Left (OS) Curvature (steep K) 49D 48.3D Myopia -7.00D -7.50D Astigmatism -1.00D -1.50D Fortunately, the bulging area of the right eye (Figure 3 and 4) is located 2 mm away from the center of the cornea while the bulging area of the left eye is located 1.5 mm outside the center of the cornea which makes more astigmatism on the left eye because the closer the cone is to the center of the cornea, the higher the astigmatism a patient will experience.With fitting of limbal RGP lenses (Figure 5 and 6), the patient’s best corrected visual acuity is 1.0 on the right eye and 0.9 on the left eye respectively. According to the patient, the comfort scale of wearing the limbal RGP lenses is about 90 (out of 100), similar to wearing daily disposable contact lenses.Figure 1.Figure 2.Figure 3.Figure 4.Figure 5.Figure 6. http://www.fantasee.com.tw/hot_260311.html Limbal RGP lenses on Keratoconus – case 1 2023-04-24 2024-04-24
Fantasee Incorporated 3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.) http://www.fantasee.com.tw/hot_260311.html
Fantasee Incorporated 3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.) http://www.fantasee.com.tw/hot_260311.html
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2023-04-24 http://schema.org/InStock TWD 0 http://www.fantasee.com.tw/hot_260311.html

Home ﹥ NEWS > KERATOCONUS CAS > Limbal RGP lenses on Keratoconus – case 2

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A 53 year-old male patient living in the United States was diagnosed with keratoconus many years ago and has been wearing Rose-K RGP lenses for almost 10 years. Based on the corneal topography, the bulging areas are located in the center of the cornea for both right and left eyes (Figure 1 and 2). A brief profile of the patient is provided below:

 

Right (OD)

Left (OS)

Myopia

-7.00D

-11.25D

Astigmatism

-2.25D

-4.50D


The patient then converted from Rose-K RGP lenses to the limbal RGP with a three-point touch design (Figure 3 and 4). With the fitting of limbal lenses, the patient’s best corrected visual acuity is 1.0 on both eyes respectively. According to the patient, the comfort scale of wearing our limbal RGP lenses is about 90 (out of 100) and the visual acuity has been very stable throughout the years.

Four years later, the patient came back for a routine check up and the conditions have remained stable comparing to the last check up. According to his good experience, the patient decided to order a new pair of lenses as the life expectance of the lenses has also declined from his daily usage throughout the years.

Figure 1. Corneal topography of the right eye. The purple area shows the cone on the cornea.
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Figure 2. Corneal topography of the left eye. The purple area shows the cone on the cornea.
4b43dc83124f8b81d29da4c0c76c3786.png

Figure 3. A three-point touch designed limbal lens fitting is shown on the right eye.
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Figure 4. A three-point touch designed limbal lens fitting is shown on the left eye.
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