Either way, the answer is the same: There’s no scientific proof that either marijuana or CBD help with cataracts. Though marijuana can ease glaucoma symptoms and CBD may relieve inflammation, they don’t have any proven benefits for people with cataracts. You’ll see why when you understand the causes of cataracts and glaucoma.
Cataracts form on the eye's lens, a transparent structure in the eye that works much like a camera lens. Humans typically develop cataracts after age 40 because crystallin proteins within the lens begin to break down into tiny clumps that cloud the lens’s natural transparency. This cloudiness produces foggy vision that gets worse over time, especially after age 70. Cataract surgery removes the natural lens and inserts an intraocular lens (IOL) in its place.
Cataracts vs. glaucoma: How they’re different
Pretty much. CBD is short for cannabidiol, a chemical from the hemp plant that has become increasingly popular in recent years because it has no intoxicating effects.
Cannabidiol marketers claim it can reduce anxiety, pain and inflammation. These claims have not been verified by the U.S. Food and Drug Administration. Only one CBD-based medication, for a rare variety of childhood epilepsy, has FDA approval.
Your last visit to the eye doctor found the culprit for your foggy vision — cataracts. Your doctor said cataract surgery is the only proven cure, but you’d like to know your options before undergoing the procedure.
An earlier study from the Medical College of Georgia seemed to suggest that both THC and CBD have retinal neuroprotective properties that showed potential against glaucoma in animal subjects. This study left the door open for further research into CBD and glaucoma, moving beyond the petri dish and on to human subjects. It also hints at a preventative function of CBD that warrants more study. 
For many people, the CBD experience is much preferred to that given by THC-laden marijuana strains. This, and also its healthful properties are why many are seeking out CBD oil for glaucoma and a number of other, eye-related health issues.
Research, while still preliminary, is showing some interesting and promising findings for CBD oil for glaucoma and eye-related health issues such as macular degeneration and retinitis pigmentosa. It also shows that cannabinoids, both synthetic and natural, may be instrumental in improving night vision and slowing down vision loss. 
The Current Research on Cannabinoids Like CBD Oil for Glaucoma
Similarly, the number of glaucoma cases went from 2.22 million to 2.72 million over the same ten year period, with an expectation that the condition will affect more than six million people by the year 2050. Clearly, eye health is something we need to view more seriously. 
Unfortunately, at this time there is little, if any, reliable scientific research on any cannabinoids for the treatment of cataracts. According to most reputable sources, the only treatment option is eye surgery to remove the cataract. There is no recognized alternative therapy for cataracts.
Glaucoma is hereditary and especially if your parents or grandparents was diagnosed, it is necessary to go for checks every two to three years.
After THC, CBD is currently the second-most-popular and well-researched cannabinoid. However, the two compounds have significant differences between them.
The Innovet Team
Hypermature cataracts are a type of cataract that comes from loss of fluids and certain proteins in the eye. They vary in appearance from only a bit of a cloudy film to a very cloudy appearance. They also vary in severity from some good vision to little or no vision.
This disease often occurs in aging dogs. However, it can be as a result of trauma to the eye or from a disease. Cataracts in dogs can also be genetic. Sadly, some cases of cataracts can cause complete blindness or partial blindness. Dogs that are from a breed that is prone to cataract formation can request a genetic test for the condition from a veterinarian or a trusted genetic testing source.
Parting Thoughts on Cataracts In Dogs:
Incipient cataracts are the first stage of cataracts in dogs. This stage is the least threatening and can be treated with a positive prognosis if caught early enough in the disease. Dogs often go to veterinarians or specialty veterinary eye doctors to get treatment for cataracts.
Cataracts in dogs come in various progression types and stages. The stages will range from mild to serious and in between.
However, there are risks to dog cataract surgery. One of the most prominent risks is intraocular scar tissue. Intraocular scar tissue can occur after the surgery and can cause eye issues. Veterinary eye doctors will provide eye drops to help treat this condition if it does occur after surgery. They will often also provide post-op care as part of the surgery process. Glaucoma is also a risk of this surgery. In most cases, it resolves shortly after the surgery and won’t become a long-term condition. However, some dogs develop it years later after the surgery and will require ongoing care. Other risks are detachment of the retina, an eye infection, and anesthesia complications. Anesthesia is a risk for dogs just as it is for humans. Most veterinary offices will take great care when giving general anesthesia to the pet and have the dog monitored the entire time they are under for their surgery. This means monitoring their breathing, heart rate, blood pressure, and more.
Ensure that any prescriptions, eye drops, or supplements that you are supposed to give them is given as directed. These products may be able to help with your pet’s condition and it is best to give it to them on the recommended schedule and in the recommended amounts. Keep an eye on your dog for any improvements, side effects, or other issues that seem concerning.