Eye Handbook (EHB) is an eye care reference book and an all-in-one app for Ophthalmologists, Optometrists as well as Students/Residents pursuing the field of eye care. The Eye Handbook is a smartphone diagnostic and treatment reference app for Ophthalmologists and Optometrists. Below is a list of some of the common features. -Eye Calculators -Diabetic Retinopathy Severity Calculator -Dry Eye Disease Calculator -Glaucoma Risk Calculator -Thyroid Eye Disease Calculator -Retinoblastoma Calculato