<p style='text-align: justify;'>letter from Abū Zikrī to Abū ʿAlī, detailing ophthalmological health problems, and mentioning Abū l-Ḥasan. Abū Zukrī is suffering from a cataract, which is impairing his vision and make him see ‘like a piece of marble’, and intense eye-pain. Verso: letter of reply to Abū Zikrī written around an Arabic document, which gives advice regarding health, suggesting eye-washes with a bucket of well-water, bloodletting, and that Abū Zikrī avoid consuming dairy products.</p>