Guangzhou physical examination ophthalmology, need an empty stomach?

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Guangzhou physical examination ophthalmology, need an empty stomach?

In Guangzhou, there are many well-known hospitals that provide physical examination services, among which ophthalmic examination is a very important link. However, many people have doubts about whether an empty stomach is required for eye examination. This problem is analyzed from several aspects.

1. Vision examination

Vision examination is the basis of ophthalmic physical examination. It can help doctors understand your myopia, hyperopia and astigmatism. This item usually does not require an empty stomach, you can check after eating. However, if you plan to have a fundus exam, you need an empty stomach.

Fundus examination is a method to observe the blood vessels and tissues inside the eyeball. It needs to enlarge the pupil for observation. Do not eat within 4 to 8 hours before this examination to avoid food residue affecting the clarity of fundus photography. Therefore, if you plan to have a fundus examination, it is recommended to stop eating in advance.

2. Intraocular pressure test

The intraocular pressure test is used to measure the pressure of the liquid inside the eyes. This examination usually requires an empty stomach, because eating will lead to changes in intraocular pressure, thus affecting the accuracy of the examination results.

It is recommended not to eat within 8 hours before the intraocular pressure test to avoid the impact of food on intraocular pressure. If you are unable to perform the examination on an empty stomach due to special reasons, you need to inform the doctor in advance, and they may have corresponding adjustment measures.

3. Corneal topography examination

Corneal topography is an examination item to evaluate vision by measuring the curvature of the corneal surface. This examination usually does not require an empty stomach, you can do it after eating. However, if you need to have corneal topography and fundus examination at the same time, you need to stop eating in advance.

Because fundus examination needs to enlarge the pupil, and the eye will adjust after eating, leading to pupil contraction, which will affect the accuracy of corneal topography examination. Therefore, if you need these two tests, it is recommended to stop eating in advance.

4. Optometry

Optometry is an examination that measures and evaluates your vision through different lens combinations. Optometry usually does not require an empty stomach, you can do it after eating. However, if you need an optometry for pupil dilation, you need to stop eating early.

Pupil dilation optometry is to measure your vision more accurately. Usually, special drugs are used to dilate the pupils. Before this examination, you may need to stop eating so that the medicine can work.

summary

Guangzhou physical examination ophthalmology, whether to need an empty stomach depends on the specific examination items. Generally speaking, most ophthalmic examinations can be performed after eating, but items such as fundus examination, intraocular pressure examination and pupil dilation optometry usually require an empty stomach. Therefore, it is better to consult the doctor before the physical examination, so as to accurately understand the requirements of each examination and make relevant preparations.

Refer to the real Guangzhou hospital: Guangdong Yuejian Eye Hospital.