Glasses prescription: how long is it valid ?
The validity period of a glasses prescription is an important consideration in the field of optics and eye health.
Indeed, when you consult an ophthalmologist for an eye examination, it is important to understand how long the resulting prescription can be used.
In this article from our COP9 ophthalmology centre, find out everything you need to know about how long a glasses prescription remains valid.
Ordonnance de lunettes : quelle est sa durée de validité ?
In France, the validity period of a glasses prescription depends on the patient’s age.
For a prescription allowing glasses to be renewed, it is generally valid for 1 year for children under the age of 16, 5 years for people aged 16 to 42, and 3 years from the age of 43 onwards.
For a child under the age of 16 receiving glasses for the first time, the glasses prescription is valid for 6 months.
These validity periods apply to the possibility of renewing or adapting optical equipment within the framework set out by French regulations.
However, this does not mean that the prescribed correction will necessarily remain suitable throughout this entire period. Vision can change, particularly in cases of myopia, hyperopia, astigmatism or, with age, presbyopia.
If your vision changes, it is therefore advisable to consult an ophthalmologist without waiting for the prescription to expire.
A decrease in visual acuity, blurred vision, difficulty seeing at a distance or up close, or the onset of new visual disorders may warrant a new eye examination.
Glasses prescription: why is ophthalmological follow-up still necessary?
Certain eye diseases, such as glaucoma, age-related macular degeneration (AMD), cataracts or diabetic retinopathy, also require appropriate ophthalmological follow-up.
In these situations, monitoring eye health should not be limited solely to the validity period of a glasses prescription.
In the event of a significant or sudden change in vision, particularly if symptoms suggestive of retinal detachment appear, it is important to consult a healthcare professional promptly. A new glasses prescription may be issued if the visual correction needs to be adjusted.
A vision examination involves more than simply measuring visual acuity. During an ophthalmological examination, the eye specialist also looks for possible visual disorders and may recommend appropriate screening based on the patient’s age and medical history.
In children, particularly in paediatrics and paediatric ophthalmology, the assessment may include an evaluation performed with an orthoptist, especially where strabismus, difficulties with binocular vision or disorders requiring rehabilitation through orthoptics are suspected.
Glasses prescription: what examinations can be performed?
To obtain a glasses prescription, you need to consult a qualified healthcare professional who can carry out the necessary examination and prescribe an appropriate correction.
An ophthalmologist can perform various examinations to assess visual acuity, refraction and the condition of the retina. Depending on the situation, functional tests or a fundus examination may also be carried out to assess eye health and detect any possible eye disease.
Depending on the symptoms, age or family history, various additional examinations may be recommended, including a fundus examination, tomography, assessment of the visual field, or other eye examinations. These investigations help provide a more comprehensive assessment of eye health and allow for appropriate medical care.
Glasses prescription: how can you obtain a new prescription?
If vision correction is required, the ophthalmologist can prescribe glasses and issue an appropriate glasses prescription, with corrective lenses tailored to the patient’s visual needs.
It is therefore important to consult an ophthalmologist if your vision changes, even if your previous glasses prescription is still valid.
Once the prescription has been issued, you can visit an optician to have your glasses prescription made.
When renewing optical equipment, the optician may, under certain conditions, adjust the correction according to changes in your vision and the validity of the prescription. They can also advise you on the choice of lenses and how best to adapt them to your visual needs.
You can book an appointment at a COP9 ophthalmology centre, where a medical team can provide care tailored to the patient’s individual needs. This organisation forms part of a coordinated care pathway, with appropriate medical care when several healthcare professionals are involved, particularly the ophthalmologist and orthoptist.
Glasses prescription: what reimbursement is available?
It is also important to distinguish between the validity period of the glasses prescription and how often optical equipment can be renewed and covered by the French national health insurance system and supplementary health insurance providers.
The conditions for reimbursement of glasses depend in particular on the patient’s age, the type of equipment and the applicable coverage rules.
To conclude
In summary, the validity period of a glasses prescription mainly varies according to age: 1 year for patients under 16, 5 years for those aged 16 to 42, and 3 years from the age of 43 onwards.
However, if your vision changes or unusual symptoms occur, it is important to consult an ophthalmologist without waiting for the prescription to expire.


