Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
A 72 year-old male patient suffered from eyeball rupture on his left eye during an accident about six years ago. He was sent to a nearby medical center and diagnosed with corneal perforation, traumatic cataract, and hyphema. He was immediately treated with surgical intervention including primary repair of cornea, anterior vitrectomy and cataract extraction but the intraocular lens was not implanted concomitantly.Six years later, the patient came to our clinic for consultation. The uncorrected visual acuity were 20/100 and 20/2000 on the right and left eyes respectively. With a subjective refraction of -1.00 -2.5 x 95 OD and +12.00 -0.75 x 100 OS, the best-corrected visual acuity were 20/50 on the right and 20/100 on the left side respectively. For the left eye, slit lamp biomicroscopy showed a whitish scar about 1 mm away from the center of cornea nasally (Figure 1). The anterior chamber depth was not shallow but the pupil was irregular shaped and mid-dilated. There was a posterior synechia between the iris and the residual lens capsule around the nasal part of the pupil but no implantation of intraocular lens was noted (Figure 2). The corneal topography was shown in Figure 3.As the result, the blurry vision experienced by the patient was due to aphakia, corneal scar and irregular astigmatism but the patient refused to have an secondary implantation of intraocular lens on his left eye for personal reason. Actually, the vision would not be good after the implantation intraocular lens because of corneal scar and irregular astigmatism. Therefore, RPG lens fitting may be a good option to this case. Then, the limbal RGP lenses was prescribed (Figure 4) that giving the patient a vision of 0.6.Figure 1. There was a whitish scar on cornea of the left eye being 1mm away from the center nasally.
Figure 2. There was a posterior synechiae between the iris and the residual lens capsule around the nasal part of the pupil but no implantation of intraocular lens was noted.Figure 3. The corneal topography of the traumatized eye showed topographical steepening over the corneal scar.Figure 4. The traumatized eye was fitted with an limbal RGP contact lens.
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Limbal RGP lenses on corneal scar – 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_260437.html
Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
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2023-04-24
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Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
A 34 year-old male patient was diagnosed with keratoconus since childhood and had dealt with blurry vision and irregular astigmatism for quite some time. At the age of 20, he was treated with corneal transplant (Figure 1 and 2) at a medical center located in Taiwan. However, the patient still experienced blurry vision due to irregular astigmatism afterwards. Then, he came to our clinic for fitting of RGP contact lenses.With a subjective refraction of -2.25D/ -1.00D x 30 (right eye) and -2.00D/ -6.00D x 35 (left eye), the best-corrected visual acuity were 0.8 on the right and 0.5 on the left side respectively. The corneal topography showed irregular astigmatism on the both eyes (Figure 3 and 4). Obviously, the cornea curvature of the left eye is more distorted than the right eye causing severe irregular astigmatism.To achieve the appropriate fitting, we designed 9 curves on the back surface of the RGP lenses. With using this limbal RGP lenses, the patient can have a vision of 20/20 on the both eyes respectively (Figure 5 and 6).Figure 1. Corneal transplant on right eye.Figure 2. Corneal transplant on left eye.Figure 3. Corneal topography of right eye.Figure 4. Corneal topography of left eye.Figure 5. Limbal RGP lens fitting on right eye.
Figure 6. Limbal RGP lens fitting on left eye.
http://www.fantasee.com.tw/hot_260440.html
Limbal RGP lens on corneal transplant – case 2
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_260440.html
Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
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2023-04-24
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Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
A 47 year-old female patient with myopia had been using disposable contact lenses on a daily basis for quite some time. Her refraction was -4.75D on the both eyes respectively with a good vision for far distance when wearing contact lens. However, the near vision was only 0.4 that she need a near glasses with ADD +1.5D to read. Therefore, she wanted to have multifocal contact lens to improve her near vision. A pair of aspheric multifocal RGP contact lenses (Figure 1) was prescribed and the vision were 1.0 and 0.9 for the far and near distance respectively.Figure 1. Aspheric design of multifocal RGP contact lens.Figure 2. Aspheric multifocal RGP contact lens on right eye.Figure 3. Aspheric multifocal RGP contact lens on left eye.
http://www.fantasee.com.tw/hot_260442.html
Limbal RGP lens on presbyopia – case 3
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_260442.html
Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
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2023-04-24
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Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
A 61 year-old female patient diagnosed with dry eye syndrome for more than 20 years and had come to seek medication attention upon experiencing discomfort and pain in her eyes. She had tried different ways to relief dryness and pain from using regular artificial tears to non-preservative ones, and was also treated with punctal plug. However, none of these were effective and thus she decided to fit the limbal RGP lenses as the soft contact lenses were contraindicated to the dry eye.For the traditional RGP lens, the size is small that cannot cover the whole cornea entirely (Figure 1). Then, it is difficult to keep the tear between the cornea and contact lens. The limbal size RGP lens is bigger in which a space can be designed at the back surface of the lens. The tear can be stored in this space between the cornea and contact lens and keep the cornea moist. The symptom of dryness may be improved. After fitting the limbal RGP lenses (Figure 2 and 3), the patient felt better subjectively.Figure 1. The size of traditional RGP lens is small that cannot cover the whole cornea entirely. It is difficult to keep the water between the cornea and contact lens. By the way, the movement of the RGP lens is rather big that make the wearer feeling uncomfortable.Figure 2. The patient's right eye fitted with limbal RGP lens. The green colored area showed the tear between the cornea and contact lens which keep the cornea moist.Figure 3. The patient's right eye fitted with limbal RGP lens. The green colored area showed the tear between the cornea and contact lens which keep the cornea moist.
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Limbal RGP lens on dry eye syndrome – case 4
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_260443.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_260443.html
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2023-04-24
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Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
Myopia is very popular in the world and people wear the spectacle to correct the vision mostly. However, people may not be comfortable if the glasses are thick and heavy when the myopia is high (over -10.0 D). Furthermore, the image is smaller and distorted if the power of lens is too high which would make people experience headache or dizziness. In this way, fitting of contact lens may be a good option to correct the vision.A 24 year-old female patient diagnosed with high myopia had come to seek for medical attention. The refraction was -17.0D/ -0.50D x 180 on right eye and -16.50D/ -1.0D x 180 on the left eye respectively. After fitting the limbal RGP contact lenses, she could now achieve a best corrected visual acuity of 20/16 with no signs of red eye (Figure ).
http://www.fantasee.com.tw/hot_260444.html
Limbal RGP lens on high myopia – case 5
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_260444.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_260444.html
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2023-04-24
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http://www.fantasee.com.tw/hot_260444.html
Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
Comparing to RGP lens, toric soft contact lens does not have a wide range of specifications to choose from. Manufacturers could only make what is suitable for the majority of the population since it may not be practical to manufacture bases on all the prescriptions out there. Thus, patient could only find what’s close to his or her prescription. In addition, toric soft contact lens may rotate slightly in the eye causing unstable vision for some people, and also it would not be able to correct irregular astigmatism.A 28 year-old female patient with high astigmatism has come for medical advice. With a subjective refraction of -7.00 -3.00 x 180 OD and -7.00 -2.00 x 180 OS, the best-corrected visual acuity were 1.0 for both eyes with spectacle. Based on the corneal topography (Figure 1 and 2), the curvature on the vertical axis of the cornea appeared to be steeper than the horizontal axis and the pattern looks like the keratoconus. This patient was unable to find suitable toric soft contact lenses and therefore decided to fit limbal RGP lenses. With limbal RGP lenses, the patient could have a stable vision of 1.0 for both eyes respectively (Figure 3 and 4).Figure 1. Corneal topography of right eye.Figure 2. Corneal topography of left eye.Figure 3. Limbal RGP lens fitting on right eye.Figure 4. Limbal RGP lens fitting on left eye.
http://www.fantasee.com.tw/hot_273149.html
Limbal RGP lenses on corneal astigmatism – case 6
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_273149.html
Fantasee Incorporated
3F-2, No.202, Sec. 3, Datong Rd., Xizhi Dist., New Taipei City 22103, Taiwan (R.O.C.)
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2023-04-24
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