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ORIGINAL ARTICLE
Year : 2007  |  Volume : 55  |  Issue : 4  |  Page : 277-281

A pilot trial for comparison of photodynamic therapy and transpupillary thermotherapy for the management of classic subfoveal choroidal neovascularization secondary to age-related macular degeneration


1 Centre for Sight, B-5/24, Safdarjang Enclave, New Delhi, India
2 Vitreo-Retina Services, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi - 110 029, India

Correspondence Address:
Raj V Azad
Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.33040

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Aim: The aim of the study was to compare the visual outcomes of photodynamic therapy (PDT) with verteporfin and transpupillary thermotherapy (TTT) for classic subfoveal choroidal neovascularization (CNVM) secondary to age-related macular degeneration (ARMD). Settings and Design: Patients with subfoveal classic CNVM caused by ARMD attending vitreo-retinal services at a tertiary care setup were included in this nonrandomized, open label, prospective, clinical, comparative pilot trial. Materials and Methods: Standardized refraction, visual acuity testing, evaluation of fundus and serial color photography and fundus fluorescein angiography were carried out to evaluate the effects of treatment in 32 eyes each undergoing either PDT or TTT. Follow-up was carried out at four weeks, 12 weeks and six months. Retreatment if indicated was carried out three months post treatment. Results: Stabilization or improvement occurred in 69% of patients undergoing PDT and 50% patients undergoing TTT at six months of follow-up. Among patients with a pretreatment visual acuity greater than or equal to 20/63, only one out of six patients who underwent PDT had a drop of visual acuity > 2 lines as compared to four patients (100%) who underwent TTT. ( P =0.0476, two-tailed Fisher's exact test). Conclusion: For short-term preservation of vision in patients of classic CNVM due to ARMD, PDT seems to be better than TTT if the pre-laser best corrected visual acuity is > 20/63 but both are equally effective if pre-laser best corrected visual acuity is < 20/63.


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