Clinical & experimental ophthalmology
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Phthisis bulbi is a relatively uncommon and atypical clinical presentation of retinoblastoma. ⋯ This is the largest case series of retinoblastoma patients with primary phthisis bulbi. Phthisis bulbi in retinoblastoma may be associated with bilateral disease in most cases and advanced intraocular disease in the fellow eye in a significant number of cases. Regression is incomplete in majority of these cases; therefore, enucleation must definitely be done in all cases of retinoblastoma presenting with phthisis bulbi.