Visual Prognosis Of Eyes Research Articles

Timing of Vitrectomy after Penetrating Ocular Injuries

The visual outcome, as well as the preoperative sensory and anatomic status, of 49 eyes undergoing vitrectomy within 72 hours after a penetrating injury, was compared to 54 eyes with penetrating injury operated on by vitrectomy at longer intervals. The eyes operated on within 72 hours of the injury had a better visual outcome than those operated on later, but this difference was not statistically significant. However, there were important differences between the two patient groups. Eyes undergoing vitrectomy within 72 hours had a better initial visual acuity after injury, a greater percentage of anteriorly located lacerations, fewer cases of severe vitreous hemorrhage, and a higher proportion of cases with an intraocular foreign body. Each of these factors had been shown previously to be associated with a comparatively favorable visual prognosis in eyes treated by conventional means of wound repair without vitrectomy. Therefore, the visual acuity differences among the two main groups in this study are probably due to differences in the types of cases selected for early versus later vitrectomy, rather than to the difference in the timing of surgery.

Presumed histoplasmic maculopathy: clinical course and prognosis in nonphotocoagulated eyes.

In this chapter, we have tried to identify some of the variables related to the visual prognosis in eyes with presumed histoplasmic maculopathy. We are cognizant that a constellation of other as yet unidentifiable variables also may play a role in the visual prognosis. Also, we have reported our visual results in patients who were nt photocoagulated. Many of these patients received corticosteroid therapy in some form, but we found it impossible to compare treatment ot nontreatment groups. Our results for visual prognosis is all nonphotocoagulated eyes are in general agreement with those available in the literature. For instance, Gass et al. [1] report 20 of 38 eyes (52.6 percent) with visual acuity of 20/200 or less. Also, this same study documents retention of 20/30 or better central vision in 13 of 38 eyes (34 percent), and the visual results in our study for all 54 nonphotocoagulated eyes parallel the reported findings of Schlaegel et al. [3] where 59 percent of eyes ended with a visual acuity of 20/200 or worse, 30 percent with vision of 20/50 or better, and 18 percent with vision of 20/30 or better...