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Understanding Photophobia and Complications After Cataract Surgery

[Voice of Hope September 22, 2023](Editor: Li Wenhan) What should I do if my eyes are photophobic after cataract surgery? Is regular review required? Will there be a “relapse”? Do these problems also bother you?

Cataract surgery is usually not allowed to be performed on two eyes at the same time. Generally, the two eyes are completed one week to one month apart, mainly to ensure the safety of the surgery and the postoperative effect.

There is a risk of infection in any surgery. Although the risk of intraocular infection in current cataract phacoemulsification surgery is very low, once intraocular infection occurs and is not controlled promptly and effectively, the consequences will be very serious and may cause severe visual damage. Even eyeball removal. Therefore, doing the two eyes separately will help reduce surgical risks.

Cataract (photoAC)

Secondly, if both eyes are operated on at the same time, it may be inconvenient for the patient to use the eyes for a few days after the operation, affecting daily life. Therefore, doing the two eyes separately is beneficial to maintaining a normal life after surgery.

Furthermore, in order to allow the patient to obtain clearer vision in both eyes, the doctor will refer to some eye parameters after the first eye returns to normal after surgery to guide the design of the surgical plan for the second eye to achieve better postoperative results.

After cataract surgery, you will feel something in your eyes when you open and close your eyes, and you will feel uncomfortable feelings such as sand grinding and dryness, which are mainly related to the following reasons:

①The surgical incision on the edge of the cornea has not completely healed and is uneven. This is a normal reaction after surgery, and most people will gradually relieve it about a month after surgery.

②Dry eyes appear. This may be related to multiple factors such as corneal and ocular surface tissue damage caused by surgery, perioperative medication, postoperative inflammatory reaction, and the patient’s own preoperative conditions (age, preoperative dry eye or meibomian gland dysfunction, diabetes, etc.) , is a common complication after eye surgery. The symptoms of discomfort begin to subside about one month after the operation, and can return to pre-operative levels in about three months.

③ Postoperative astigmatism. Limbal astigmatism and incisional astigmatism can cause eye discomfort. One month after surgery, as the corneal edema decreased, the healing of the incision improved accordingly.

Cataract surgery (pixabay)

After cataract surgery, patients feel that there are small black shadows floating in front of their eyes, like mosquitoes flying. The symptoms are more obvious when looking at a white background. This is caused by vitreous opacity, which is what we often hear about “floaters”. This has nothing to do with cataract surgery, but is caused by the gradual liquefaction and degeneration of the transparent, jelly-like vitreous body with age.

In fact, floaters already existed before cataract surgery, but the cloudy lens caused blurred vision, making it difficult to see things clearly, so naturally one could not feel anything floating. After the surgery, my vision got better, I could see things clearly, and I could clearly feel something floating in front of my eyes.

Cataracts occur in the lens, and floaters occur in the vitreous body, one after the other. If the eye is compared to a room, cataract is like closing the curtains in the room, blocking part of the light. At this time, the room becomes dark, and naturally the dust floating in the air cannot be seen. Cataract surgery is to help the eyes open the curtains. , let the sunlight shine in, and you can clearly see the floating dust.

If something floats in front of your eyes, it generally has little impact on your life, so you can leave it alone, and there is currently no particularly effective treatment.

Dare not open my eyes (photoAC)

Cataract patients have reduced vision due to the cloudy lens blocking part of the light entering the eye, and the colors they usually see will become darker and not bright enough. After surgery, a transparent intraocular lens is replaced, and the amount of light entering the eye suddenly increases. It is like suddenly opening the curtain, and the patient will feel dazzling and photophobic. It’s like staying in a dark room for a long time, and suddenly opening the curtains and letting the sunlight shine in will make you feel particularly dazzling.

This is normal, so don’t worry too much. Usually after a few days, the eyes and brain gradually adapt to the bright light, and they will no longer be afraid of the bright light. But if your eyes feel particularly uncomfortable, you can wear suitable sunglasses to relieve it.

This is because the vision of the eye that has undergone surgery has been restored, from unclear vision to very clear vision after surgery. The gap in vision between the two eyes has increased. In comparison, the vision of the eye without surgery will feel Although the visual acuity has decreased relatively, the visual acuity has not actually changed. This is also related to the neuroadaptability of the brain. The brain will actively select eyes with good vision and gradually weaken eyes with poor vision.

Cataract patients are generally recommended to have reexaminations one week, one month, three months and six months after surgery, and then once a year.

Reviews one week and one month after surgery are to observe the healing of surgical incisions and recovery of vision, and to promptly detect postoperative complications such as infection, inflammatory damage, and intraocular pressure fluctuations, which will help doctors adjust medication and discontinuation according to the condition, and treat patients. Personalized health guidance to ensure surgical results.

The vision is basically stable three months after the operation. At this time, follow-up treatment such as optometry and glasses can be carried out during the reexamination.

Some cataract patients may also suffer from other eye diseases, such as glaucoma, optic atrophy, macular degeneration, etc. However, due to the occlusion of the cataract before treatment, fundus lesions cannot be accurately detected. After cataract surgery, the patient’s fundus is clearly visible. At this time, fundus lesions that cannot be seen before surgery can be detected in time and treated as soon as possible to avoid more serious damage to visual function. Therefore, surgery is not a once-and-for-all treatment, and regular postoperative review is also important.

If the cataract is not serious, preoperative examination can detect whether there are lesions in the fundus. However, if the cataract is severe, the doctor will be unable to accurately assess the fundus condition due to the obstruction of the cataract. Only when a clear intraocular lens is replaced after surgery can the fundus condition be better observed and fundus lesions can be detected. If fundus lesions are discovered after surgery, targeted treatment measures can be taken promptly according to the condition to improve visual function.

Look close but blurry (pixabay)

After cataract surgery, the distance vision is clear and the near vision is relatively blurry. This is because these patients have monofocal intraocular lenses installed in their eyes. A monofocal intraocular lens has only one focus, and can only see distance or near, but not both. It is currently the most widely used type of intraocular lens. It is mainly used for distance vision. If you want to see clearly at near distance after surgery, you only need to wear suitable reading glasses.

With the advancement of science and technology, there are now many types of intraocular lenses, such as aspheric intraocular lenses, multifocal intraocular lenses, continuous range intraocular lenses, astigmatism correction intraocular lenses, etc. Different types of intraocular lenses can provide different visual effects and functions. . Patients can discuss with their doctor to choose an intraocular lens that suits them, taking into account their own eye conditions, eye-using habits, and financial status to obtain clear visual quality.

Some patients “relapse” after cataract surgery for a period of time, with reduced vision and blurred vision. This is not actually a recurrence of the cataract itself, but the opacity of the posterior capsule, which is clinically called post-onset cataract. Cataract surgery removes the cloudy core part of the lens (nucleus and cortex), leaving the lens shell (capsular bag) in place to support the artificial lens. Posterior cataract is due to the fact that some remaining lens epithelial cells are still active and migrate, proliferate and differentiate under certain conditions to cover the posterior capsule, resulting in turbidity, deformation and shrinkage of the posterior capsule, resulting in decreased vision.

To put it simply, the originally transparent pouch becomes cloudy. This is like a transparent glass window turning into frosted glass, and we can no longer see clearly through it.

Postoperative cataract is a common long-term complication after cataract surgery, which will affect the patient’s visual function to varying degrees. Its incidence and timing vary from person to person, it can occur months to years after cataract surgery, and it doesn’t happen to everyone.

There is no need to worry too much if post-cataract occurs. Most patients only need to receive laser treatment in the outpatient clinic. The laser is used to open a small window in the center of the turbid posterior lens capsule so that light can pass through normally, and the cataract can be cured quickly. Improve vision.

There are certain risk factors for post-onset cataracts. These high-risk groups should pay attention to their vision status after surgery: ① Some basic diseases that affect intraocular conditions, such as diabetes, hyperlipidemia, immune diseases, etc.; ② Combined with high-risk Patients with eye diseases such as myopia, glaucoma, pre-existing uveitis, and age-related macular degeneration.

Intraocular lens (pixabay)

The material of the current intraocular lens has good biocompatibility, can exist in the eye for a long time without causing rejection, and can be used for life without special reasons. Special circumstances include very serious complications after surgery, eye injuries or lesions of the zonular ligament of the eye causing intraocular lens displacement/prolapse, patients being dissatisfied with the visual quality, and in rare cases the intraocular lens itself is cloudy, etc. It may need to be replaced.

Generally, you can cook and stir-fry 2 weeks after cataract surgery. At this time, the superficial wound has basically healed. However, you should be careful not to have too much fumes when cooking or stir-frying to avoid irritating the eyes with smoke or oil. The elderly, patients with malnutrition, and patients with systemic metabolic diseases such as diabetes have relatively slow wound healing and can wait a month before cooking.

Except for dietary restrictions due to medical conditions (such as high blood pressure, hyperlipidemia, diabetes, gout, etc.), there is generally no need for special dietary restrictions after cataract surgery, and there is no need to take supplements such as ginseng. A normal diet can provide sufficient nutritional support. We recommend eating light and easy-to-digest foods, and not eating too greasy or spicy foods to avoid unhealthy diets that may irritate the surgical eye and be detrimental to disease recovery. Of course, try not to smoke or drink.

Editor in charge: Li Zhi

This article or program was edited and produced by Voice of Hope. When reprinting, please indicate Voice of Hope and include the original title and link.

2023-09-22 10:34:28

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