Overnight contact lens fitting in Moscow (orthokeratology)
Overnight contact lens fitting always begins with an examination. The ophthalmologist evaluates visual acuity, corneal shape, tear film quality, and any limitations that may make the method unsafe. Therefore, overnight contact lens fitting is not done at random.
At K+31, patients undergo a full medical evaluation. First, a diagnosis, then parameter calculations, a fitting, care training, and post-wear monitoring. Only with this sequence is vision correction with overnight contact lenses completely safe for the patient.
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Who are they suitable for?
Night lenses are often considered if myopia is confirmed. They are also considered when glasses or daytime contact lenses are uncomfortable for the patient. The following factors are important:
- Age
- Corneal condition
- Hygiene skills
- Willingness to return for follow-up appointments
This method is not suitable for everyone. If there is inflammation, severe dryness, corneal pathologies, or poor hygiene, the doctor will choose a different correction method. Safety is more important than speed.
Night lenses for children are in demand for progressive myopia. According to studies, OK therapy slows the progression of myopia in some children and adolescents. However, the results are only assessed dynamically. It is evaluated in conjunction with regular eye examinations.
For adults, overnight lenses are convenient for those with a busy schedule, sports, dry indoor air, and intolerance to daytime vision correction. This method is also considered when the patient does not plan laser surgery or has restrictions on it.
When is this method especially convenient?
Vision correction with overnight lenses is suitable for people who need clear daytime vision. These include:
- Schoolchildren
- Students
- Athletes
- Drivers
- Office workers
- Residents of Moscow and the surrounding region with a busy schedule
Overnight lenses in Moscow are convenient because the patient can come for regular checkups and not miss appointments during the adaptation period.
General information
How does the fitting process work?
At K+31, fitting of overnight lenses follows a strict medical procedure. During the first appointment, the doctor reviews the patient's complaints, clarifies their previous correction experience, and conducts a diagnostic. Afterwards, the doctor calculates the contact lens parameters, demonstrates the correct technique, and schedules a follow-up appointment after the first nights.
The service includes the following main steps:
- Ophthalmologist consultation
- Visual acuity test
- Corneal diagnostics
- Fitting a trial pair
- Instruction on insertion, removal, and care
- Follow-up appointments at the appointed time
After the appointment, the patient receives a clear action plan. The doctor explains in advance what sensations are acceptable during the adaptation period and which symptoms require a prompt examination.
Initial Vision and Cornea Diagnosis
The first appointment includes a vision examination, refraction testing, and an examination of the anterior segment of the eye. The doctor evaluates the eyelids, tear film, and corneal surface to rule out unsafe overnight lens wear.
A separate corneal topography is performed: a map of the shape and curvature is needed for optical calculations.
Individualized Parameter Selection
After the diagnosis, the doctor calculates the curvature, diameter, fit, and optical power of the contact lenses. Individualized fitting reduces the risk of:
- Displacement
- Weak visual effect
- Corneal irritation
Sometimes parameters are adjusted after the first few nights, as each patient's ocular surface is unique.
How to use contact lenses
The patient learns how to insert and remove a pair, clean them with solution, store them in a case, and inspect the surface before use. Parents are separately shown how to help their child at home.
Lens care is discussed in detail.
Do not rinse the lenses with water, use old solution, insert a damaged pair, or continue wearing them if there are signs of inflammation.
Check after initial wear
The initial check is necessary to determine how the eye tolerates overnight wear. The ophthalmologist checks vision, lens fit, cornea, and any complaints, even minor ones.
Then monitoring continues as scheduled. An ophthalmologist consultation is necessary not only in case of discomfort but also if vision is stable.
Frequently Asked Questions
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Who are they suitable for?
How quickly are the effects noticeable?
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Peculiarities
Orthokeratology is a temporary vision correction procedure using rigid contact lenses that act on the anterior surface of the cornea. This changes its optical shape for a limited time. In the morning, the patient removes the pair. During the day, they typically see without glasses.
The effect is reversible. After discontinuing the regimen, the cornea gradually returns to its original parameters. Therefore, the result depends on the accuracy of the fitting, as well as on the duration of sleep and regular monitoring.
How night lenses help you see during the day without glasses
Night lenses are worn before bed. During sleep, they help light focus more accurately on the retina. Therefore, vision becomes clearer in the morning. Vision correction during sleep does not replace surgery. It also does not permanently change the tissue.
What's the difference from regular contact lenses?
Soft contact lenses work during the day while they're on the eye. Rigid lenses are used at night. Therefore, the patient spends most of the day without glasses. This format is convenient:
Orthokeratology uses rigid gas-permeable lenses designed to fit the surface of the eye. Therefore, the selection of orthokeratology lenses requires diagnosis and a fit check.