2013, Number 2
PDF size: 1043.77 Kb.
ABSTRACTIntroduction: Open-globe ocular trauma causes visual deficiency; calculating the magnitude of the latter often misses the estimation in patients without follow-up. Aim: to identify the modification of the postoperative proportion of visual deficiency in open-globe ocular trauma, which would introduce considering the proportion estimated in patients without follow-up.
Methods: Non-interventional, retrospective, longitudinal, analytical study. Visual outcome in eyes with open-globe trauma, with and without follow-up, was calculated using the Ocular Trauma Score. The observed postoperative proportion of visual deficiency was identified in eyes with follow-up; in eyes without follow-up, the postoperative proportion of visual deficiency was estimated using an analysis of scenarios: best (Ocular Trauma Score), mean (that of eyes with follow-up) and worst (last observation/no visual improvement). The estimated proportion of visual deficiency was added to that observed in eyes with follow-up, and the resulting proportion was compared with that expected in the sample, using the Ocular Trauma Score (χ2).
Results: 104 eyes, 70 without follow-up and 34 without it. In eyes with follow-up the expected proportion of visual deficiency was 58.6%, and the observed one was 71.4% (p = 0.1); the estimated proportion of visual deficiency in eyes without follow-up was 76.5%. The resulting postoperative proportion of visual deficiency in the sample would be 73.1%, which would overcome that expected by the Ocular Trauma Score (59.6%, p = 0.04).
Conclusions: In open-globe ocular trauma, the efficacy of surgery to reduce the proportion of visual deficiency would decrease with regard to the standard expected by the Ocular Trauma Score, if the deficiency estimated in eyes without follow-up were considered.
Malik IQ, Ali Z, Rehman A, Moin M, Hussain M. Epidemiology of Penetrating Ocular Trauma. Pak J Ophthalmol 2012;28(1):14-16.
Oluyemi F. Epidemiology of Penetrating Eye Injury in Ibadan: A 10-Year Hospital-Based Review. Middle East Afr J Ophthalmol 2011;18(2):159-163.
Long J, Mitchell R. Hospitalised Eye Injuries in New South Wales, Australia. Open Epidemiol J 2009;2:1-7.
Fea A, Bosone A, Rolle T, Grignolo FM. Eye injuries in an Italian urban population: report of 10620 cases admitted to an eye emergency department in Torino. Graefes Arch Clin Exp Ophthalmol 2008;246(2):175-179.
Pieramici DJ, Sternberg P Jr, Aaberg TM Sr, Bridges WZ Jr, Capone A Jr, Cardillo JA, et al. A system for classifying mechanical injuries of the eye (globe). The Ocular Trauma Classification Group. Am J Ophthalmol 1997;123(6):820-831.
Arévalo JF, Serrano MA, Arias JD. Latin American Experience in the Management of Open Globe Injuries: An Internet Based Survey. Vision Pan-America 2011;10(2):38-44.
Rao LG, Ninan A, Rao KA. Descriptive study on ocular survival, visual outcome and prognostic factors in open globe injuries. Indian J Ophthalmol 2010;58(4):321-323.
Koo L, Kapadia MK, Singh RP, Sheridan R, Hatton MP. Gender Differences in Etiology and Outcome of Open Globe Injuries. J Trauma 2005;59(1):175-178.
Purkayastha P, Sharma G. A retrospective analysis of open globe injuries in a tertiary ophthalmological centre in North-East India. Kathmandu University Med J 2005;3(3):255-258.
Khatry SK, Lewis AE, Schein OD, Thapa MD, Pradhan EK, Katz J. The epidemiology of ocular trauma in rural Nepal. Br J Ophthalmol 2004;88(4):456-460.
Pandita A, Merriman M. Ocular trauma epidemiology: 10-year retrospective study. NZMJ 2012;125(1348):61-69.
Gyasi ME, Amoaku WMK, Adjuik MA. Epidemiology of Hospitalized Ocular Injuries in the Upper East Region of Ghana. Ghana Med J 2007;41(4):171-175.
Kuhn F, Maisiak R, Mann L, Mester V, Morris R, Witherspoon CD. The Ocular Trauma Score (OTS). Ophthalmol Clin North Am 2002;15(2):163-165.
Unver YB, Kapran Z, Acar N, Altan T. Ocular Trauma Score in Open-Globe Injuries. J Trauma 2009;66(4):1030-1032.
Mansouri M, Faghihi H, Hajizadeh F, Rasoulinejad SA, Rajabi MT, Tabatabaey A, et al. Epidemiology of Open-Globe Injuries in Iran: Analysis of 2,340 Cases in 5 Years (Report No. 1). Retina 2009;29(8):1141-1149.
Lesniak SP, Bauza A, Son JH, Zarbin MA, Langer P, Guo S, et al. Twelve-Year Review of Pediatric Traumatic Open Globe Injuries in an Urban U.S. Population. J Pediatr Ophthalmol Strabismus 2012;49(2):73-79.
Tök L, Yalçin Tök Ö, Özkaya D, Eraslan E, Sönmez Y, Örnek F, et al. Characteristics of open globe injuries in geriatric patients. Ullus Travma Acil Cerrahi Derg 2011;17(5):413-418.
Andreoli MT, Andreoli CM. Geriatric Traumatic Open Globe Injuries. Ophthalmol 2011;118(1):156-159.
Maneschgn OA, Resch M, Papp A, Németh J. Prognostische Faktoren und klinische Ergebnisse in der Behandlung von offenen Augenverletzungen mit intraokularen Fremdkörpern. Klin Monatsbl Augenheilkd 2011;228(9):801-807.
Al-Mezaine HS, Osman EA, Kangave D, El-Asar AMA. Prognostic Factors After Repair of Open Globe Injuries. J Trauma 2010;69(4):943-947.
Tök OY, Tok L, Eraslan E, Ozkaya D, Ornek F, Bardak Y. Prognostic Factors Influencing Final Visual Acuity in Open Globe Injuries. J Trauma 2011;71(6):1794-1800.
Sintuwong S, Winitchai R. Predictive factors of visual outcome in open globe injuries in Thailand; a prospective study. Asian Biomedicine 2011;5(2):289-294.
Andreoli MT, Andreoli CM. Surgical Rehabilitation of the Open Globe Injury Patient. Am J Ophthalmol 2012;153(5):856-860.
Man CYW, Steel D. Visual outcome after open globe injury: a comparison of two prognostic models- the Ocular Trauma Score and the Classification and Regression Tree. Eye 2010;24(1):84-89.
Han SB, Yu HG. Visual Outcome After Open Globe Injury and Its Predictive Factors in Korea. J Trauma 2010;69(5):E66-72.
Capurro ND, Gabriello NL, Letelier LM. Importancia de la intención de tratar y el seguimiento en la validez interna de un estudio clínico randomizado. Rev Méd Chile 2004;132(12):1557-1560.
Montori VM, Guyatt GH. Intention-to-treat principle. CMAJ 2001;165(10):1339-1341.
White IR, Horton NJ, Carpenter J, Pocock SJ. Strategy for intention to treat analysis in randomised trials with missing outcome data. BMJ 2011;342:d40.