Description

Muhtaseb et al developed a score which can help to identify a patient who may have problems during cataract surgery. The authors are from Moorfields Eye Hospital at St. George's Hospital in London.


Parameters:

(1) dense, total, white, brunescent cataract

(2) pseudoexfoliation

(3) phacodonesis (weak zonules)

(4) previous vitrectomy

(5) corneal scarring or cloudiness

(6) pupil size

(7) anterior chamber depth

(8) age of the patient

(9) ametropia

(10) posterior capsule plaque

(11) posterior polar cataract

(12) miscellaneous risk factors

 

Parameter

Finding

Points

dense, total, white, brunescent cataract

no

0

 

yes

3

pseudoexfoliation

absent

0

 

present

3

phacodonesis

absent

0

 

present

3

previous vitrectomy

no

0

 

yes

1

corneal scarring

absent

0

 

present

1

pupil size

not small (>= 3 mm)

0

 

small (< 3 mm)

1

anterior chamber depth

not shallow (>= 2.5 mm)

0

 

shallow (< 2.5 mm)

1

age of the patient

<= 88 years of age

0

 

> 88 years of age

1

ametropia

not high

0

 

high (> 6 D of myopia or hyperopia)

1

posterior capsule plaque

absent

0

 

present

1

posterior polar cataract

absent

0

 

present

1

miscellaneous risk factors

absent

0

 

present

1

 

where:

• A brunescent cataract is one with a brown or amber core.

 

total score =

= SUM(points for all 12 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 18 (or 17 if posterior polar cataract is not scored for a dense, total, white, brunescent cataract)

• The higher the score the greater the intraoperative risk for a complication.

 

Total Score

Risk Group

Overall Complications

0

no added risk

4.3%

1 or 2 points

low

7.5%

3 to 5 points

moderate

13.5%

>= 6 points

high

32%

 


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