Purpose: This study aims to evaluate the effectiveness of prism correction in resolving diplopia, as measured by the diplopia resolution score, and to analyze the associated factors influencing treatment outcomes in patients with symptomatic diplopia of diverse etiologies. Methods: This prospective study analyzes diplopia resolution outcomes among 71 patients prescribed prism correction at Binocular Vision Therapy Clinic. Results: This study included 71 patients prescribed prisms for diplopia management from various etiologies. The mean age was 25.9 ± 21 years (range: 4–68 years), with a mean diplopia duration of 11 ± 10.5 months. Among them, 40 were male and 31 were female, and 71% had no systemic illness. 36.6% ( n = 26) had prior strabismus surgery and required prisms for diplopia management or bifoveal fixation. 42.3% ( n = 30) had diplopia from diverse causes, including postcataract surgery ( n = 4), postretinal detachment surgery ( n = 1), and decompensated intermittent exotropia ( n = 2). 2.8% had thyroid-related orbitopathy, and cranial nerve palsies contributed to 31% of cases (fourth nerve: 15.5%, sixth nerve: 7%, third nerve: 8.5%). Patients with postcataract surgery diplopia successfully resolved symptoms with vertical prisms. Sensory strabismus with dense amblyopia was seen in 1.4% ( n = 1). Conclusion: Our study concluded that the prisms are effective in alleviating diplopia over a varied range of etiologies.
Sharma et al. (Tue,) studied this question.