How Does mCNV Affect My Vision?

Learn more about how visual acuity relates to mCNV and how VEGF can affect your vision if left untreated.



Mild mCNV Changes

Mild mCNV

Severe mCNV Changes

Severe mCNV

In severe myopia, the eye becomes oval shaped.

  • Stress from this condition may damage the retina (the part of your eye that captures light)

In mCNV, stress on the layer between the retina and sclera (white part of the eye) may make unhealthy blood vessels form in the back of the eye.

  • These unhealthy blood vessels can cause irreversible vision damage


What is visual acuity and how does it relate to mCNV?

Your doctor can detect changes or problems in your vision with a visual acuity test. Visual acuity tests find the smallest letters you can see on a standard eye chart. Visual acuity is the sharpness of your vision.

Visual Acuity Chart

Visual Acuity Chart

What is VEGF and how does it relate to mCNV?

In the healthy eye, a protein called vascular endothelial growth factor, or VEGF, helps grow new blood vessels.

  • In eyes with mCNV, there may be too much VEGF. This leads to the abnormal blood vessel growth that can cause vision problems

Eye With VEGF

Image of Eye Showing Increased VEGF Causing Abnormal Vessel Growth

Watch the video to see how mCNV can change vision over time

This video is meant to show you a range of symptoms you may experience. Symptoms can vary depending on the severity level of the disease and will be unique for each person. If you experience any problems with vision, contact your Retina Specialist right away.


A Retina Specialist can help

mCNV is a progressive disease. This means that it usually gets worse, but it can be treated. 

  • Your vision will likely continue to get worse without treatment
  • By starting treatment and sticking with your doctor’s plan, you take an important step in helping to manage your mCNV
  • If you think you are experiencing problems with vision from mCNV, make an appointment with a Retina Specialist right away
Appointment Calendar

Make a Retina Specialist Appointment

If you do not have a Retina Specialist, ask your ophthalmologist or primary care physician about a referral or use the Find a Retina Specialist tool.

Find a Retina Specialist

Financial Assistance Options

Financial Assistance Options

There may be options to help you afford LUCENTIS, no matter what type of health insurance you have. Learn about Genentech Access Solutions.

Who is LUCENTIS for? LUCENTIS® is a prescription medicine for the treatment of patients with myopic choroidal neovascularization (mCNV).

What important safety information should I know about LUCENTIS? You should not use LUCENTIS if you have an infection in or around the eye or are allergic to LUCENTIS or any of its ingredients. LUCENTIS is a prescription medication given by injection into the eye, and it has side effects. LUCENTIS is not for everyone. Some LUCENTIS patients have had detached retinas and serious eye infections. If your eye becomes red, sensitive to light, or painful, or if you have a change in vision, call or visit your eye doctor right away. 

Some patients have had increased eye pressure before and within 1 hour of an injection. Your eye doctor should check your eye pressure and eye health before and after your LUCENTIS injection. 

Uncommonly, LUCENTIS patients have had serious, sometimes fatal, problems related to blood clots, such as heart attacks or strokes. 

Some LUCENTIS patients have serious side effects related to the injection. These include serious infections inside the eye, detached retinas, and cataracts. The most common eye-related side effects are increased redness in the white of the eye, eye pain, small specks in vision, and increased eye pressure. The most common non–eye-related side effects are nose and throat infections, anemia, nausea and cough. 

LUCENTIS is for prescription use only. 

You may report side effects to the FDA at (800) FDA-1088 or www.fda.gov/medwatch. You may also report side effects to Genentech at (888) 835-2555.

For additional Safety Information, please talk to your doctor and see the LUCENTIS full Prescribing Information.