Cataract: Morganian


Morganian cataract : what is it ?

What is a morganian cataract? How to detect it? Which surgery to treat it? What equipment should be used? Discover our file.

Morganian cataract : what is it ? 

Morganian cataract is the most advanced stage of cataract. Surgery is the only way to treat it as no medication can cure it. 

Moria, a leading manufacturing company in ophthalmic tools, unveils morganian cataract surgery techniques and instruments to use during the intervention. 

What is morganian cataract? 

Morganian cataract is an eye disease that was first discovered by Giovani Battista Morgagni in the 18th century. The name of this type of cataract derives from Dr. Morgagni’s name. It is a type of hypermature cataract caused by the cortex’s liquefaction and the falling of the dense nucleus into the bottom part of the capsular bag. 

This form of cataract usually happens when cataract remains untreated. It happens mostly in developing countries with poor ophthalmic treatments[1]

Age as a risk factor of morganian cataract

Cataracts usually appear in the elderly. Morganian cataract is also linked to age, but diabetes and regular exposure to sunlight are also risk factors. If untreated, it can lead to glaucoma and, in more serious cases, to vision loss. 

Morganian cataract symptoms

The two main symptoms of morganian cataract are : 

  • reduced eyesight from near to distance
  • glare.

Clinical signs of morganian cataract 

The following signs can help ophthalmologists diagnose morganian cataract: 

  • painless and gradual eye vision decrease
  • floating dense nucleus within the liquified cortex
  • calcium traces within the anterior capsule
  • retinoscopy doesn’t show any red fundus glow
  • a visible triangle area delimited on the anterior and posterior part by the anterior and posterior lens capsule. The lens nucleus forms the triangle base[2].

[1] J. Brzezinska ⁎, P. Lewandowski, R. Philips - 331 Chirurgie de cataracte de Morgagni par phacoémulsification : à propos de deux cas - EM Consulte (En ligne) -,%C2%AB%20fluido%2Ddura%20%C2%BB). 

[2] Sabin Sahu, MS - Morganian Cataract - American Academy of Ophthalmology (En ligne) -,the%2018th%20century%20anatomical%20pathologist

What causes morganian cataract? 

Morganian cataract is characterized by a speed fiber dissolution. Eosinophilic fluid accumulates between lens cells which leads to displacement and degeneration of the surrounding cells. Morganian globules (globules resulting from the cortical cell walls’ breakdown) accumulate and replace the whole cortex, which leads to morganian cataract. 

When such stage is reached, the central dense nucleus starts depending on gravity which results in its deplacement to the lower region of the capsular bag lens[1]

[1] Sabin Sahu, MS - Morganian Cataract - American Academy of Ophthalmology (En ligne) -,the%2018th%20century%20anatomical%20pathologist

Can hypermature cataract be removed? 

Yes, morganian cataract can be surgically removed by 2 techniques: phaco-emulsificationextra-capsular extraction, although this type of surgery can be slightly more challenging than the one performed to remove cataract at an early stage. The experience of the surgeon and the ophthalmic tools used during this intervention are two key elements that ensure a successful intervention. 

How to treat a morganian cataract? 

Several surgical techniques can be used to make visualization easier during hypermature cataract surgery and to control the creation of a capsulorhexis. These two elements ensure a successful surgical morganian cataract treatment[4].

The creation of continuous curvilinear capsulorhexis 

Continuous curvilinear capsulorhexis might be more difficult to perform in morganian cataract. This is mainly due to the high intralenticular pressure that can result in the lens capsule tearing. On the other hand, the surgical challenge of this technique to treat morganian cataract lies on the lack of red reflex and the displacement of liquefied cortical material within the anterior chamber following the capsule opening.

To perform morganian cataract surgery using curvilinear capsulorhexis forceps, surgeons are advised to darken the operating room while increasing microscope magnification as well as coaxial lights.

Improving visualization during hypermature cataract surgery

To stain the anterior lens capsule during morganian cataract surgery and to highlight contrast between the underlying lens and the anterior capsule, trypan blue can be used. The anterior part of the capsulorhexis can thus be seen with more precision. Some ophthalmic surgeons also use side illumination using an endoilluminator in order to get a better visualization of the capsular tear.

Limiting the risk of uncontrolled capsular tear during morganian cataract surgery

When performing morganian cataract surgery, there is a high risk of uncontrolled capsular tear. To avoid this, capsulorhexis can be performed in two stages. The surgeon starts by making a small continuous curvilinear capsulorhexis. The content of the liquefied lens is then aspirated. 

The advantage of this two-stage technique is that there are less unexpected radial tears.

IOL implantation

The last stage of hypermature cataract surgery is the implantation of an intraocular lens (IOL) through small incisions. The IOL is an artificial lens that replaces the original natural one during cataract surgery. IOLs come in various types and allow the patient to get their eye vision back right after the morganian cataract surgery[5].


[4] Amanda C. Maltry, MD; Anna S. Kitzmann, MD - Morganian Cataract - The University of Iowa (En ligne) - 

[5] Yoshihiro Takamura, MD, PhD; Namiki Oishi, MD; Eri Kubo, MD, PhD; et al - Morganian Cataract With an Isolated Posterior Capsular Opening - Jama Network (En ligne) - 

What are the ophthalmic instruments needed to perform morganian cataract surgery?

What are the ophthalmic instruments needed to perform morganian cataract surgery?

To ensure success of morganian cataract surgery, the following instruments by Moria can be used during each stage of the intervention: 

Recovery time

Patients can see a few hours after the morganian cataract surgery, although vision might remain blurry for a few days. To avoid infections, ophthalmic surgeons usually prescribe antibiotics in the shape of eye drops. 

During the first week that follows the intervention, make-up must be avoided and when showering, patients have to make sure no water enters the eyes. Eye pressure must be kept low. That is to say: no heavy physical activity. 

Any abnormal pain following the intervention must be reported to the surgeon as quickly as possible[6].

Results to expect after morganian cataract surgery

Morganian cataract surgery usually provides really good results as long as it is performed by a good surgeon using the right ophthalmic instruments such as ophthalmic tools by Moria

Patients can see again right after the intervention. The result continues to develop overtime as patients follow the postoperative advice given by their surgeon[7].

Possible complications following hypermature cataract surgery

The following complications can occur after a morganian cataract surgery:

  • uncontrolled radial tear at the anterior capsule
  • posterior capsular tear
  • dropping of the nucleus within the vitreous
  • damage to the endothelium due to high phacoemulsification energy[8] 

[1] Allen Omid Eghrari, M.D., M.P.H. - Cataract Surgery Recovery: 5 Tips From an Expert - Johns Hopkins Medicine (En ligne) - 

[2] Alsubari Alwan1,& et Riani Mohammed1- Cataracte morganienne - National Library of Medicine (En ligne) - 

[3] Sabin Sahu, MS - Morganian Cataract - American Academy of Ophthalmology (En ligne) -,the%2018th%20century%20anatomical%20pathologist.

Need for information?

Last update: 22/04/2024

We use cookies to ensure that we give you the best experience on our website and to analyze our traffic. If you click "ACCEPT", you agree the use of cookies. You can change your cookie settings, select "CUSTOMIZE".

To find out more about the cookies we use, check out our Legal information
. Learn more about how you can contact us and how we process personal data in our Personal Data Protection & Privacy Policy.
Strictly necessary cookies
The cookies are required for good functionality of website and can’t be switched off in our system.
Functional Cookies
We use these cookies to enhance functionality and allow for personalization. If you choose to decline them, some features of the site may not work as intended.
Performance cookies
We use these cookies to provide statistical information about our website. They are used for performance measurement and improvement.