Cornea and External Diseases Department, Massachusetts Eye and Ear Infirmary, Harvard Ophthalmology, Boston, MA.
Correspondence: Emma Davies, MD, Massachusetts Eye and Ear Infirmary, Massachusetts Eye and Ear Infirmary Cornea and External Diseases, 243 Charles St, Boston, MA 02114 (e-mail: [email protected]).
The author has no funding or conflicts of interest to disclose.