EFFECT ON CORNEAL DIOPTRIC POWER IN PATIENTS UNDERGOING 23G SUTURE LESS PARS PLANA VITRECTOMY
| Autor: | Abida Fida, Ahsan Mukhtar, Imran Basit, Fida Hussain, Mazhar Ishaq |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Pakistan Armed Forces Medical Journal, Vol 68, Iss 5, Pp 1186-1189 (2018) |
| Druh dokumentu: | article |
| ISSN: | 0030-9648 2411-8842 |
| Popis: | Objective: To determine the effect of 23-gauge pars plana vitrectomy on corneal dioptric power through a comparison of difference in pre- and post- surgery keratometry. Study Design: Prospective non-comparative interventional type. Place and Duration of Study: The study was conducted at the Armed Forces Institute of Ophthalmology (AFIO) Rawalpindi from Dec 2016 to Jul 2017. Material and Methods: We studied 33 patients (33 eyes) who underwent 23-gauge vitrectomy with mean age of 46.4 ± 12.8 years. Among them 13 were females and 20 were males. These patients were divided in four groups on the basis of pre-surgical diagnosis. 18 (55%) patients had rhegmatogenous retinal detachment, 9 (27%) had macular holes 3 (9%) with Vitreous hemorrhage and last 3 (9%) had dislocation of intraocular lens. Total vitrectomy was performed in all patients by standard 23G pars plana vitrectomy (PPV) procedure as used with three scleratomies and tunnel shaped incision. Keratometry readings before the surgery and at the end of 1st, 6th and 12th post procedural weeks were recorded in horizontal (K1) and vertical meridian (K2) by utilizing topcon auto kerato-refractometer. Results: The pre-operative dioptric power of cornea in horizontal and vertical meridian (K1 and K2 respectively) was statistically compared with post- operative dioptric power of cornea at the end of 1st, 6th and 12th postopertive weeks. At the end of first post- operative week there was significant difference between pre and post-operative corneal dioptric power with horizontal p-value |
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