A 55-year-old man presented to the emergency room with chief complaints of decreased vision, severe pain, tearing, and photophobia of his left eye after administering a drop of Kermes topical eye drops, which he obtained from a homeopathic/folk medicine man. Apart from hypertension, the patient’s medical history was unremarkable.\nOphthalmic examination revealed best corrected visual acuity of 20/30 in the right eye (OD) and 20/200 in the left eye (OS). Examination of the OD was unremarkable except for mild cataract. Examination of OS revealed swelling and black pigmentation over the upper eyelid. There was conjunctival chemosis along with well-demarcated black elevated areas inferonasally. Evidence of early cicatrization involving the fornix of the conjunctiva and symblepharon formation were present. Some particulate material from the lower fornix was removed and submitted for chemical analysis. Administration of topical fluorescein hydrochloride revealed a large epithelial defect involving the whole cornea []. There was no evidence of perilimbal ischemia. Intraocular pressure was normal in both eyes.\nThe left eye was immediately irrigated with normal saline for 30 min. The patient was instructed to frequently lubricate the left eye with preservative-free artificial tears in addition to the administration of topical Ofloxacin 0.3% drops 4 times a day for 1 week and topical prednisolone acetate 1% 4 times a day for the first week then it was tapered. In addition, topical cyclopentolate 1% drops 2 times a day were prescribed for the first 2 weeks. Over the following several days, the patient’s best corrected visual acuity improved to 20/60. Eyelid swelling along with skin discoloration completely resolved. The corneal epithelial defect healed completely without scarring \n[].\nGas chromatography/mass spectrometry of the submitted sample revealed the main ingredient to be kermesic acid (C18H12O9) consistent with Kermes. In addition to kermesic acid, there were elements of barium, iron, manganese, potassium, and copper. Six months after presentation, symblepharon was still noted, however, the best corrected visual acuity OS was 20/25 without corneal scar.
A 74-year-old man presented to the Emergency Department at King Khaled Eye Specialist Hospital 3 days after self-application of latex from C. procera in his left eye (OS). He reported a painless decrease in vision. There was no history of previous trauma, surgery, or other ophthalmic disorder. Apart from hypertension, the patient had no medical illness.\nOphthalmic examination revealed best-corrected visual acuity of 20/40 in the right eye (OD) and hand motion vision in the OS. Intraocular pressure using applanation tonometry was within normal range in both eyes. Examination of the OD was unremarkable except for a mild cataract. Slit-lamp examination of the OS revealed quiet conjunctiva, no corneal epithelial defect, diffuse corneal edema with significant Descemet's folds and small pigmented keratic precipitates [ and ], nuclear sclerosis of the lens, and a hazy view of the fundus. B-scan ultrasonography of the OS showed no pathology of the posterior pole. Specular microscope SP-3000 P showed 2224 endothelial cells/mm2 in the OD and 593 cells/mm2 in the OS, with abnormal morphology.\nThe patient was started on topical prednisolone acetate 1% four times a day for the first week, after which it was tapered. In addition, topical cyclopentolate 1% drops three times a day were prescribed for the first 2 weeks. In the first follow-up at 1 week after presentation, his best-corrected visual acuity in the OS improved to 20/300. Slit-lamp examination showed a reduction in corneal edema and an increase in clarity with fewer Descemet's folds. In the second follow-up at 2 weeks after presentation, his best-corrected visual acuity improved to 20/200. Slit-lamp examination showed a clear cornea with no residual edema []. One month later, his best-corrected visual acuity was 20/80 in the OS. Six months later, the cornea remained clear with best-corrected visual acuity of 20/60 in the OS. The latex was sent for analysis and revealed the elements shown in . The result of phytochemical screening of petroleum ether and methanol leaf extracts of C. procera revealed the presence of glycosides, protein, triterpenoids, steroids, and flavonoids. The presence of these components in this species is an indication that it may have some medicinal potential. The latex of the C. procera was tested and was found completely varying in pH values. It has an acidic nature with pH of 4.2 at room temp of 25°C. The amount of magnesia was found in highest amount in latex. The level of chromium was completely absent [].