Who can wear orthokeratology lenses?

Orthokeratology lenses, because they are worn on the cornea, our corneas are actually very different, and not all people are suitable for wearing them. There are many myopic children, and parents are actually very anxious and hope that their children can wear this orthokeratology lens.

However, some children may not be suitable for orthokeratology lenses because the corneal flexion rate is too steep or too flat, and for example, the cornea may be dry, or its shape is irregular. Therefore, orthokeratology lenses need to be under the guidance of a doctor, and he needs to do a detailed examination.

Some children may have too high a prescription, or too much astigmatism, etc., if it is beyond the scope that can be corrected by this orthokeratology lens, or if they have some diseases such as dry eye, or have some inflammation, etc., these are not suitable for orthokeratology lenses.

Therefore, if the child wants to be fitted with orthokeratology lenses, parents must take the child to a regular medical institution for a detailed examination to see if the condition of the child's eyes is suitable for orthokeratology lenses.

Generally, children over 8 to 10 years old, the degree of myopia is generally within 600 degrees, and the degree of astigmatism is generally within 150 degrees. Moreover, there will be very strict techniques and some hygiene requirements.

Ocular conditions: no eye diseases, such as keratitis, conjunctivitis, glaucoma, etc., systemic: no systemic diseases that cause low immunity;

Individual conditions: good hygienic conditions, good hygiene habits, compliance with the rules, over 8 years old;

Refractive conditions: myopia less than 600 degrees, ordinary lens astigmatism less than 150 degrees, special lens astigmatism less than 350 degrees.

Orthokeratology lenses are not suitable for people-

1. There are certain misunderstandings in the understanding of orthokeratology, such as patients who unrealistically believe that this method can be myopic;

2. The expectation is too high, which is inconsistent with the actual effect of orthokeratology lenses;

3. Ocular diseases, such as patients with diseases on the ocular surface, degeneration of epithelial cell stromal membrane, endothelial cell degeneration, patients with ** epithelial cell spotting and severe dry eye, patients with infection and inflammatory eye diseases, etc.;

4. The refractive error is greater than that, and the astigmatism is greater than the astigmatism, which is not suitable for night wear;

5. Patients with obvious intraocular astigmatism, as well as those with a spherical-to-cylindrical ratio of less than 3 in refractive error, need to be considered with caution;

6. Patients with large pupils, especially those with large pupils at night (>4mm);

7. Young age, poor self-care ability, poor personal hygiene habits;

8. Those who cannot complete the follow-up operation, and those who have poor compliance with wearing and follow-up.

Orthokeratology is a medical technique that requires a qualified physician, qualified lenses, and a qualified user to achieve a purpose that is both safe and effective. In addition, the safe use of orthokeratology lenses is largely related to the hygiene habits of the user, and it is not recommended to wear orthokeratology lenses without good hygiene habits and conditions. When teenagers are using, parents must supervise their children to complete the cleaning and disinfection procedures according to the specifications.

Orthokeratology lenses can effectively correct low-to-moderate myopia and myopic astigmatism, but they are not recommended for those with one of the following conditions

Contact lenses are contraindicated in patients with severe ocular and/or systemic diseases; The corneal refractive power, corneal morphology, curvature, and pupil size are not within the scope of indications; Those who are unable to understand the limitations and reversibility of orthokeratology lenses in correcting myopia; Those who have too high sensitivity or too high expectations; Orthokeratology lenses are not recommended for those who have poor compliance, cannot follow the doctor's instructions for timely follow-up visits, do not take care of cleaning carefully and cannot replace lenses.

People with eye diseases, such as corneal epithelial cell spotting, severe trachoma, keratitis, severe dry eye syndrome, too young, poor self-care ability, poor personal hygiene habits, etc., are not suitable for wearing.

If the contraindications are excluded, the degree of myopia is about or so, (the height number fitting needs to be combined with low-degree glasses during the day), and after strict vision examination, it is suitable for trial fitting, and those who can wear and re-examine as required can be fitted.

1.Farsightedness.

2.Acute conjunctivitis, corneal diseases, dacryocystitis, glaucoma, various fundus diseases, amblyopia, etc. 3Patients with severe systemic diseases such as diabetes, rheumatism.

4.There is no guarantee that the lenses will be cleaned and treated in a standardized manner.

5.Those who do not have the ability to take care of themselves.

Hello! 1. Ocular contraindications: acute inflammation of the eye in any active period, keratitis, keratoconus, chronic pigmentitis, chronic dacryocystitis, dry eye, corneal hyposensation, eyelid insufficiency, paralytic strabismus, cataract, acute and chronic glaucoma and active fundus disease, etc.

2. Systemic contraindications: acute and chronic paranasal sinusitis, severe diabetes, ** disease, corticosteroids, atropine drugs that have an impact on keratology, rheumatoid arthritis and other collagen diseases and psychiatric patients.

3. Relative contraindications to individual conditions: unable to take care of themselves, poor personal hygiene, poor compliance, and unable to review on time.

4. Those who are allergic to care products or lenses.

5. The expectation is too high and exceeds the range of orthokeratology lenses.

6. Those who are considered unsuitable by the ophthalmologist or fittestian.

The above people are not suitable for wearing orthokeratology lenses.

Orthokeratology lens is a new type of myopia correction technology, which can effectively control the development of myopia, and only needs to be worn at night when sleeping, eliminating the trouble of wearing glasses in daily life, so it is welcomed by many friends.

However, fit is always relative, and orthokeratology lenses may be a "tool" for some people to correct myopia, while others may not be suitable, bringing additional risks. So who is suitable for orthokeratology lenses and who can't?

Who should use it?

Minors with a rapid increase in myopia. The minor's body is still in the development stage, and the eye axis will grow with the development of the body, and for every 1mm increase in the eye axis, the myopia will deepen by 300 degrees, so the myopia of the minor will show a certain degree of natural growth. Studies have proven that orthokeratology lenses can control and delay the progression of myopia, so they are especially suitable for minors with rapid myopia growth.

Adults who don't want to wear glasses and don't want to have myopia surgery. Orthokeratology lenses are easy to use and only need to be worn when sleeping at night, and do not need to wear glasses during the day, so they are another reliable "lens removal" solution for adults in addition to myopia surgery.

Who can't use it?

Under 8 years of age. Eye development is not perfect before the age of 8, and wearing orthokeratology lenses too early can cause damage to children's eyes. At the same time, children before the age of 8 have poor self-care ability, and it is difficult to ensure proper operation and hygiene with orthokeratology lenses, which may bring additional risks.

Myopia of more than 600 degrees, or astigmatism of more than 150 degrees. In order to ensure the safety of use, the industry stipulates that the correction range of orthokeratology lenses is within 600 degrees, and the astigmatism is within 150 degrees.

There is an abnormality in the ocular condition and does not meet the relevant fitting indicators. Orthokeratology lenses have a strict and standardized fitting process, and if there is an abnormality in the eye condition during the fitting examination, orthokeratology lenses are also not suitable for wearing.

However, the above is only a preliminary judgment on whether you can wear orthokeratology lenses, and whether you can choose orthokeratology to help you correct myopia still needs a more detailed examination.

1. No organic lesions of the eye (keratitis, severe dry eye, fundus disease, etc.);

2. Those with continuous myopia;

3. Aged 8 to 40 years old, with certain self-care ability;

4. The parents are highly myopic children who have become myopia;

5. Those who are nearsighted and want to be exempted from wearing glasses.

Patients aged 8 to 40 who have no eye diseases, myopia below 600 degrees and astigmatism below 300, must go to a regular hospital or ophthalmology institution to wear orthokeratology lenses.

Generally, after the age of 8, until adulthood (around 50 years old), you can wear it if you need to work or live. However, experts recommend timely control of myopia progression through orthokeratology lenses in the following situations:

myopia within the age of 200, 300 degrees or even higher;

2. Myopia increases by more than 75 degrees within one year;

3. The parents are highly myopic children who have myopia;

4. The child is nearsighted, but the child himself or his parents do not want the child to wear glasses.

Orthokeratology glasses are not suitable for all people with myopia. There are also certain restrictions on the wearing of orthokeratology glasses, and its indications are generally over 10 years old, the myopia refractive degree is below 600 degrees, the astigmatism is within 150 degrees, and the corneal curvature is in. Contraindications are ocular or systemic diseases, contraindications to the wearing of all contact lenses, such as corneal diseases, moderate or above dry eye, etc.; Unable to understand the limitations and reversibility of orthokeratology lenses for the correction of myopia, and the expectations are too high, beyond the ** range of orthokeratology lenses:

Patients with excessive sensitivity; Poor compliance, inability to recheck on time, inability to take care of the lenses, clean the lenses and replace the lenses as instructed by the physician.

Orthokeratology lenses are suitable for people.

Adolescents and children with rapid growth of myopia;

Adults who need good unaided vision during the day;

For patients with myopia, the astigmatism is within 2 days, but it can be considered for experienced doctors;

People who are not suitable for myopia surgery when going to school, recruiting workers, and joining the military for physical examination;

No corneal abnormalities, no other eye diseases;

There are no systemic diseases such as diabetes, Sjögren's syndrome, etc.

1. Power: myopia < 600 degrees, astigmatism < 200 degrees.

Generally speaking, the fitting range of OK lenses is within 600 degrees of myopia and 200 degrees of regular astigmatism, and it is more suitable for 450 degrees of myopia and 150 degrees of regular astigmatism. Especially for children who wear ordinary glasses and their myopia increases too fast, OK glasses will be a good choice.

2. Age: 8 years old and 18 years old.

After all, the wearing of OK glasses is not as convenient as that of frame glasses, and the wearing needs to pay attention to hygiene, and the age of fitting is generally recommended to be 8 years old and above. Children under the age of 8 are less cooperative, and fitting is generally not recommended. In the growth and development period of children, the control effect of myopia is the best, while adults because of the basic stereotype of eye growth, wearing OK glasses can only have a corrective effect, and the effect of controlling the progression of myopia will be relatively weak.

3. Preferences: I like sports or don't want to wear glasses.

For some children who usually like to exercise, it is inconvenient to wear glasses, or they are unwilling to wear glasses for other reasons, wearing OK glasses at night and not wearing glasses during the day can effectively control the development of myopia.

In addition, the eye is required to be free of ocular disease, ocular inflammation, and incomplete eyelid closure. When you meet these requirements, you can choose to wear OK glasses