Isotretinoin does not treat eye disease; it is used in the treatment of acne and should be used as directed by a doctor. Isotretinoin is available in two commonly used dosage forms: gel and softgel. The directions state that isotretinoin is used for the treatment of acne and does not treat eye disease. In fact, vitamin A would be effective for eye disease. Vitamin A is converted in the retina to retinaldehyde, which binds to retinal proteins to form the retinal pigment that maintains a person’s vision in low light. When vitamin A is deficient, the synthesis of retinal pigment is blocked and night vision occurs. Do not confuse isotretinoin with vitamin A. These are two medications. Those who exist eye diseases should consult the doctor in time, and use medication reasonably after the doctor’s examination and diagnosis, so as not to miss the condition.