Surgically induced astigmatism and refractive outcomes following phacotrabeculectomy
| Autor: | Veerendranath Pesala, Sanket Deshmukh, Sirisha Senthil, Chandrasekhar Garudadri, Jonnadula Ganesh, Praveen K. Bandela, Shrikant R. Bharadwaj, Kiranmaye Turaga |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Biometry Combined surgery Astigmatism Power vector phacotrabeculectomy Refraction Ocular law.invention Cornea 03 medical and health sciences 0302 clinical medicine lcsh:Ophthalmology Lens Implantation Intraocular Single site law Ophthalmology twin-site medicine Humans Prospective Studies ATR astigmatism Keratometer business.industry Corneal Topography medicine.disease Postoperative visit lcsh:RE1-994 Cohort surgically induced astigmatism 030221 ophthalmology & optometry Surgically induced astigmatism Original Article business 030217 neurology & neurosurgery single-site |
| Zdroj: | Indian Journal of Ophthalmology Indian Journal of Ophthalmology, Vol 68, Iss 4, Pp 609-614 (2020) |
| ISSN: | 1998-3689 0301-4738 |
| Popis: | Purpose: To objectively evaluate surgically induced astigmatism (SIA) after phacotrabeculectomy using keratometry and topography and to compare the magnitude of SIA and the refractive outcomes of single-site and twin-site phacotrabeculectomies. Methods: Forty prospective subjects were enrolled in the study and were randomized into single-site and twin-site cohorts. SIA was objectively assessed using keratometry and Orbscan before and at three months after surgery. For both cohorts, the changes in SIA were assessed using power vector analysis compared at the third month after surgery. Results: Each cohort consisted of 20 eyes. The preoperative parameters and postoperative IOP were comparable and similar, respectively, in both the cohorts (P = 0.1). Majority of the patients in both the cohorts had preoperative against-the-rule (ATR) astigmatism. The median change in SIA at the three-month postoperative visit was similar in both the cohorts, with a small increase in ATR astigmatism. Although the SIA change measured by keratometry in the J0 component was similar in both the groups (P = 0.54), that of J45 was significantly different (P = 0.01). However, the median change in SIA was similar in both the groups for both the J0 (P = 0.52) and J45 components (P = 0.94) when measured by Orbscan. The SIA in both the groups measured with keratometry (P = 0.62) and topography (P = 0.52) were clinically and statistically similar. In both the groups, the refraction was similar at 1 month and 3 months. Conclusion: The SIA as measured with keratometry and topography was similar in the single-site and twin-site phacotrabeculectomy cohorts at the end of 3-months. The postoperative refraction was stabilized in 1-month in both the groups. |
| Databáze: | OpenAIRE |
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