Simulated keratometry (simK in D) was assessed at the flattest (Flat) and steepest (Steep) meridians. The suture was removed at the slit lamp without complications, and BCVA in the left eye was 8/200 with SMR of plano –12.00 x 085.įigure 1A shows the corneal topography of his left eye using Pentacam HR (Oculus Inc., Wetzlar, Germany). UCVA (uncorrected visual acuity) in the left eye was 4/200 and BCVA (best corrected visual acuity) in the right eye was 20/20 with SMR (subjective manifest refraction) of Plano −0.50 x 015. He also reported moderate eye pain, redness, and a foreign body sensation in the left eye that had been worsening for more than two weeks. He complained of reduced vision in the left eye and severe asthenopia due to significant anisometropia. The PKP was required due a penetrating knife injury to the eye. He had a history of phacoemulsification with IOL implantation in the left eye in July 2015 and unilateral PKP of the left eye in October 2015. Case 1Ī 53-year-old man presented to our clinic for post-PKP follow-up. Informed consent was obtained from both patients to publish their case details and associated images. The study protocol was approved by the CK Ethical Committee of the CK Mary’s Eye Clinic (Seoul, South Korea) (No. Mary’s Eye Center in Seoul, South Korea from 2019 September to 2020 June. 5 This study reports the use of a Onefit A 14.7 mm diameter MSCLs (Blanchard Contact Lenses, CooperVision, Lake Forest, California, USA) to improve vision in two patients with high corneal astigmatism after PKP. Numerous reports have shown the promising therapeutic potential of scleral lenses in keratoconus, 2 irregular corneas, 2, 3 corneal ectasias, 4 and corneas post-PKP.

A MSCLs has an overall diameter up to 6 mm larger than the horizontal visible iris diameter (HVID). 1 Another advantage is the ability to precisely tailor every aspect of the fit. The lenses land on conjunctiva while vaulting over the cornea with a fluid reservoir, simultaneously providing corneal hydration and optical correction. Miniscleral contact lenses (MSCLs) are especially beneficial for patients with corneas incompatible with other lens designs. Keywords: scleral lenses, miniscleral lenses, irregular cornea, penetrating keratoplasty

MSCLs use resulted in improved comfort and visual acuity of 20/30 or better.Ĭonclusion: MSCLs with diameter of 14.7 mm can be considered a safe and effective option for patients with highly steep corneas post-PKP surgery in Asian eyes. Both patients were successfully fit with MSCLs, showing adequate corneal clearance of over 250 μm with no corneal touch on OCT and sufficient limbal clearance and edge alignment. Results: A Kmax of case 1 and 2 were 52.8 D and 76.9 D, respectively at the first visit. Visual acuity, slit lamp, and anterior segment OCT findings before and after fitted the lens of 14.7 mm diameter were recorded. Methods: Two patients with high corneal astigmatism post-PKP were evaluated for a contact lens fitting. Purpose: To report the use of miniscleral contact lenses (MSCLs) with diameter of 14.7 mm for Asian eyes to improve vision in patients after penetrating keratoplasty (PKP) surgery. Mary’s Eye Center, Kangnamdae-ro 91-5, Seoul, 06530, Korea Hyojin Kim, 1 Tiffany Yanase Park, 2 Choun-Ki Joo 3ġDepartment of Optometry, Baekseok University, Cheonan, Republic of Korea 2Department of Ophthalmology, Loma Linda University, Loma Linda, CA, USA 3CK St.Mary’s Eye Center, Seoul, Republic of KoreaĬK St.