A 49-year-old woman was referred to our clinic for penetrating keratoplasty. A central corneal scar involving the visual axis with high irregular astigmatism up to 15.8 D was noted. Because the scar was located mostly in the central cornea, ipsilateral rotational autokeratoplasty was suggested and performed. An 8.5-mm punch was used to trephine the cornea eccentrically and superiorly intentionally. The trephined corneal button was then rotated 150° to relocate the scar to the temporal upper part of the cornea. The graft was soon clear with a normal curvature centrally. The astigmatism was -0.5 D, the visual acuity was 20/40, and the endothelial cell loss was 2.66% 2 years after the operation. A rotational autograft carries no risk of immunological complications such as rejection associated with allografts and has lower endothelial cell loss rate. It can be an effective alternative to standard penetrating keratoplasty for some patients with central corneal scars.
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http://dx.doi.org/10.1016/j.tjo.2015.07.007 | DOI Listing |
Int Med Case Rep J
January 2025
Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.
Purpose: To compare the outcomes of two different surgical planning strategies for topography-guided repair of post-LASIK ectasia.
Methods: This is a case report of a patient presenting with post-LASIK ectasia. A retrospective chart review was used to collect details of the ophthalmic exam, as well as ocular imaging such as anterior segment optical coherence tomography and Scheimpflug corneal tomography.
Int J Ophthalmol
January 2025
Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Department of Ophthalmology, Peking University Third Hospital, Beijing 100191, China.
Aim: To investigate the influence of postoperative intraocular lens (IOL) positions on the accuracy of cataract surgery and examine the predictive factors of postoperative biometry prediction errors using the Barrett Universal II (BUII) IOL formula for calculation.
Methods: The prospective study included patients who had undergone cataract surgery performed by a single surgeon from June 2020 to April 2022. The collected data included the best-corrected visual acuity (BCVA), corneal curvature, preoperative and postoperative central anterior chamber depths (ACD), axial length (AXL), IOL power, and refractive error.
Int J Ophthalmol
January 2025
Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai 200080, China.
Aim: To assess the possibility of using different large language models (LLMs) in ocular surface diseases by selecting five different LLMS to test their accuracy in answering specialized questions related to ocular surface diseases: ChatGPT-4, ChatGPT-3.5, Claude 2, PaLM2, and SenseNova.
Methods: A group of experienced ophthalmology professors were asked to develop a 100-question single-choice question on ocular surface diseases designed to assess the performance of LLMs and human participants in answering ophthalmology specialty exam questions.
Int J Ophthalmol
January 2025
Department of Medical Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran 1968653111, Iran.
Aim: To identify topographic determinants of the anterior chamber angle (ACA) in patients with keratoconus (KCN).
Methods: Four hundred and ten eyes of 294 patients with KCN were recruited for this study. First, complete ocular examinations were performed for all patients, including visual acuity measurement, refraction, and slit-lamp biomicroscopy.
BMJ Case Rep
January 2025
Cornea, Dr Shroff's Charity Eye Hospital, New Delhi, India
A woman in her 50s underwent simple limbal epithelial transplantation (SLET) in the left eye for chemical injury with total limbal stem cell deficiency. A seroma, a hitherto unreported complication of the procedure was noted on the 10th postoperative day. It was associated with an accumulation of inflammatory cells and exudates in the inferior part of the amniotic membrane resembling a hypopyon.
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