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. http://www.fantasee.com.tw/hot_260437.html 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.) http://www.fantasee.com.tw/hot_260437.html

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2023-04-24 http://schema.org/InStock TWD 0 http://www.fantasee.com.tw/hot_260437.html

Home ﹥ NEWS > OTHER CASE REPO > Limbal RGP lenses on corneal astigmatism – case 6

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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.

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