{"title":"Implantable Collamer Lens in Management of Unilateral High Myopia After Pseudophakia for Traumatic Cataract: Piggybacking With Two Lenses in the Sulcus","authors":"Ritu Arora, Avani Hariani, Parul Jain, Isha Gupta","doi":"10.3928/jrscr-20230829-01","DOIUrl":"https://doi.org/10.3928/jrscr-20230829-01","url":null,"abstract":"Purpose: To describe the management of unilateral high myopia after pseudophakia for traumatic cataract by piggybacking an Implantable Collamer Lens (ICL) (V4C ICL; STAAR Surgical) along with a primary intraocular lens (IOL) in the sulcus. Methods: A 24-year-old woman underwent lens aspiration with non-foldable IOL implantation in the sulcus at 5 years of age for post-traumatic cataract. She had regular follow-up for 21 years and developed unilateral high myopia. She was using contact lenses and wanted laser vision correction. An Implantable Collamer Lens in the sulcus was used to manage the unilateral high myopia in this pseudophakic patient with a rigid IOL in the sulcus. Results: Her corneal thickness was less than 500 µm. Except for raised intraocular pressure in the immediate postoperative period, she had uneventful postoperative recovery. Her uncorrected distance visual acuity (UDVA) at 4 weeks improved to 6/9. The patient was followed up for 7 months and had a UDVA of 6/9, intraocular pressure on Goldmann applanation tonometry of 14 mm Hg, adequate vault height (1.057 mm), good anterior chamber depth (1.739 mm), and no deposits on either of the lenses. Conclusions: An ICL can be used over a primary IOL in the sulcus for the correction of ametropia, although additional cases need to be evaluated for the proper sizing and results in similar patients. [ Journal of Refractive Surgery Case Reports. 2023;3(4):e42–e46.]","PeriodicalId":477182,"journal":{"name":"Journal of refractive surgery case reports","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136160627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Efficacy of Topical Timolol Eye Drops in Treatment of Myopic Regression After Small Incision Lenticule Extraction: A Case Report","authors":"Jiawei Wu, Lu Xiong, Bo Zhang, Zheng Wang","doi":"10.3928/jrscr-20230926-01","DOIUrl":"https://doi.org/10.3928/jrscr-20230926-01","url":null,"abstract":"Purpose: To describe a patient with high myopia who experienced slight myopic regression twice during follow-up after small incision lenticule extraction (SMILE), which can be eased by topical treatment of timolol. Methods: Case report. Results: Six months after a SMILE procedure for high myopia in both eyes, the patient's uncorrected distance visual acuity (UDVA) was 0.8 and both eyes lost one line compared to preoperative corrected distance visual acuity (CDVA) by myopic shift, which was accompanied by central corneal epithelial thickening. After 2 months of treatment with topical timolol eye drops, the UDVA improved two more lines with flattened corneal curvature and thinned epithelial thickness. After 5 months without timolol treatment, he lost two lines of UDVA again with thicker epithelial thickness. After another 2 months of treatment with timolol, the epithelial thickness could be seen to have thinned month by month, and the UDVA improved two or more lines. There was no notable myopic shift in both eyes for the next 3 months with medication withdrawal. During the whole follow-up period, the change in corneal and epithelial thickness remarkably fluctuated with the timolol treatment, but the posterior corneal curvature was stable. Conclusions: This case report describes refractive regression that can repeatedly occur in the middle and long term after a SMILE procedure for high myopia, which could be correlated with the thickening of the central corneal epithelium. Treatment with timolol eye drops can help to improve visual acuity by thinning the compensated epithelial thickness to flatten corneal curvature. [ Journal of Refractive Surgery Case Reports. 2023;3(4):e47–e52.]","PeriodicalId":477182,"journal":{"name":"Journal of refractive surgery case reports","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136160633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yara Bteich, Perla Ibrahim, Jeremiah Gendy, Jad F. Assaf, Karim Barake, Shady T. Awwad
{"title":"Polymethylmethacrylate and Corneal Allogenic Intrastromal Ring Segments: Same Cornea, Different Optical Zones","authors":"Yara Bteich, Perla Ibrahim, Jeremiah Gendy, Jad F. Assaf, Karim Barake, Shady T. Awwad","doi":"10.3928/jrscr-20230818-01","DOIUrl":"https://doi.org/10.3928/jrscr-20230818-01","url":null,"abstract":"Purpose: To present the first report of corneal allogenic intrastromal ring segment (CAIRS) insertion in a cornea with an existing polymethylmethacrylate (PMMA) segment each at a different optical zone. Methods: A 29-year-old man with severe keratoconus treated with PMMA ring segment implantation at a 7-mm optical zone and 375-µm depth presented with moderate improvement in visual acuity and topography. An allogenic segment was implanted at a depth of 260 µm and an optical zone of 5 mm without explantation of the existing segment. Results: There was additional topographic regularization and significant corneal flattening, with improvement in corrected distance visual acuity from 20/60 following PMMA insertion to 20/30 following CAIRS insertion. Corneal topography showed improvement in corneal regularity with centration of the cone on the corneal vertex and improvement in coma (from 1.69 diopters [D] @ 75° to 0.51 D @ 56° at 6-mm optical zone) and keratometric cylinder (from −6.47 D × 35° to −3.59 D × 18°). Conclusions: The implantation of CAIRS in an eye that has previously undergone synthetic segment implantation at a different optical zone was demonstrated to be a promising method for regularizing topography and improving vision in this case. [ Journal of Refractive Surgery Case Reports. 2023;3(3):e38–e41.]","PeriodicalId":477182,"journal":{"name":"Journal of refractive surgery case reports","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135388672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jeremiah E. Gendy, Yara Bteich, Jad F. Assaf, Karim Barake, Shady T. Awwad
{"title":"Corneal Allogenic Intrastromal Ring Segments as a Therapeutic Method for Intrusion of Synthetic Intrastromal Corneal Ring Segment: A Case Report","authors":"Jeremiah E. Gendy, Yara Bteich, Jad F. Assaf, Karim Barake, Shady T. Awwad","doi":"10.3928/jrscr-20230814-01","DOIUrl":"https://doi.org/10.3928/jrscr-20230814-01","url":null,"abstract":"Purpose: To report the use of corneal allogenic intrastromal ring segments (CAIRS) as a salvage treatment in a case of synthetic intrastromal corneal ring segment (ICRS) intrusion into the anterior chamber. Methods: A 43-year-old man with bilateral keratoconus and an ICRS in the left eye presented with a 2-week history of tearing and light sensitivity in this eye. Anterior segment optical coherence tomography revealed intrusion of the inferotemporal segment into the anterior chamber requiring explantation. After stromal edema subsided following explantation, an allogenic segment was implanted at the same location, but at a much shallower depth. Results: Six months after CAIRS implantation, the refractive error improved from −1.75 −6.00 × 105° to −1.50 −3.50 × 115° and corrected distance visual acuity from 20/80 to 20/20-, and coma decreased from 1.54 to 0.60 diopters. Conclusions: This case highlights the potential benefits of using CAIRS as a safe and effective alternative to synthetic ICRS, especially in case of intrusion and explantation. [ Journal of Refractive Surgery Case Reports. 2023;3(3):e33–e37.]","PeriodicalId":477182,"journal":{"name":"Journal of refractive surgery case reports","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135388673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}